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mirror of https://github.com/postgres/postgres.git synced 2025-08-28 18:48:04 +03:00

pgjindent jdbc files. First time jdbc files were formatted.

This commit is contained in:
Bruce Momjian
2001-10-25 06:00:05 +00:00
parent b81844b173
commit d2e27b0674
85 changed files with 23804 additions and 22165 deletions

View File

@@ -6,58 +6,74 @@ import java.text.*;
/**
* A singleton class to translate JDBC driver messages in SQLException's.
*/
public class MessageTranslator {
public class MessageTranslator
{
// The singleton instance.
private static MessageTranslator instance = null;
private ResourceBundle bundle;
private MessageTranslator() {
try {
private MessageTranslator()
{
try
{
bundle = ResourceBundle.getBundle("org.postgresql.errors");
} catch(MissingResourceException e) {
}
catch (MissingResourceException e)
{
// translation files have not been installed.
bundle = null;
}
}
}
// Synchronized, otherwise multiple threads may perform the test and
// assign to the singleton instance simultaneously.
private synchronized final static MessageTranslator getInstance() {
if (instance == null) {
private synchronized final static MessageTranslator getInstance()
{
if (instance == null)
{
instance = new MessageTranslator();
}
return instance;
}
public final static String translate(String id, Object[] args) {
public final static String translate(String id, Object[] args)
{
MessageTranslator translator = MessageTranslator.getInstance();
return translator._translate(id, args);
}
private final String _translate(String id, Object[] args) {
private final String _translate(String id, Object[] args)
{
String message;
if (bundle != null && id != null) {
if (bundle != null && id != null)
{
// Now look up a localized message. If one is not found, then use
// the supplied message instead.
try {
try
{
message = bundle.getString(id);
} catch(MissingResourceException e) {
}
catch (MissingResourceException e)
{
message = id;
}
} else {
}
else
{
message = id;
}
// Expand any arguments
if (args != null && message != null) {
message = MessageFormat.format(message,args);
if (args != null && message != null)
{
message = MessageFormat.format(message, args);
}
return message;
}
}
}

View File

@@ -5,82 +5,98 @@ import java.sql.*;
/**
* Converts to and from the postgresql bytea datatype used by the backend.
*
* $Id: PGbytea.java,v 1.1 2001/09/10 15:07:05 momjian Exp $
* $Id: PGbytea.java,v 1.2 2001/10/25 06:00:00 momjian Exp $
*/
public class PGbytea {
public class PGbytea
{
/**
* Converts a PG bytea string (i.e. the text representation
* of the bytea data type) into a java byte[]
*/
public static byte[] toBytes(String s) throws SQLException {
if(s==null)
return null;
int slength = s.length();
byte[] buf = new byte[slength];
int bufpos = 0;
int thebyte;
char nextchar;
char secondchar;
for (int i = 0; i < slength; i++) {
nextchar = s.charAt(i);
if (nextchar == '\\') {
secondchar = s.charAt(++i);
if (secondchar == '\\') {
//escaped \
buf[bufpos++] = (byte)'\\';
} else {
thebyte = (secondchar-48)*64 + (s.charAt(++i)-48)*8 + (s.charAt(++i)-48);
if (thebyte > 127)
thebyte -= 256;
buf[bufpos++] = (byte)thebyte;
}
} else {
buf[bufpos++] = (byte)nextchar;
}
}
byte[] l_return = new byte[bufpos];
System.arraycopy(buf,0,l_return,0,bufpos);
return l_return;
}
/**
* Converts a PG bytea string (i.e. the text representation
* of the bytea data type) into a java byte[]
*/
public static byte[] toBytes(String s) throws SQLException
{
if (s == null)
return null;
int slength = s.length();
byte[] buf = new byte[slength];
int bufpos = 0;
int thebyte;
char nextchar;
char secondchar;
for (int i = 0; i < slength; i++)
{
nextchar = s.charAt(i);
if (nextchar == '\\')
{
secondchar = s.charAt(++i);
if (secondchar == '\\')
{
//escaped \
buf[bufpos++] = (byte)'\\';
}
else
{
thebyte = (secondchar - 48) * 64 + (s.charAt(++i) - 48) * 8 + (s.charAt(++i) - 48);
if (thebyte > 127)
thebyte -= 256;
buf[bufpos++] = (byte)thebyte;
}
}
else
{
buf[bufpos++] = (byte)nextchar;
}
}
byte[] l_return = new byte[bufpos];
System.arraycopy(buf, 0, l_return, 0, bufpos);
return l_return;
}
/**
* Converts a java byte[] into a PG bytea string (i.e. the text
* representation of the bytea data type)
*/
public static String toPGString(byte[] p_buf) throws SQLException
{
if(p_buf==null)
return null;
StringBuffer l_strbuf = new StringBuffer();
for (int i = 0; i < p_buf.length; i++) {
int l_int = (int)p_buf[i];
if (l_int < 0) {
l_int = 256 + l_int;
}
//we escape the same non-printable characters as the backend
//we must escape all 8bit characters otherwise when convering
//from java unicode to the db character set we may end up with
//question marks if the character set is SQL_ASCII
if (l_int < 040 || l_int > 0176) {
//escape charcter with the form \000, but need two \\ because of
//the parser
l_strbuf.append("\\");
l_strbuf.append((char)(((l_int >> 6) & 0x3)+48));
l_strbuf.append((char)(((l_int >> 3) & 0x7)+48));
l_strbuf.append((char)((l_int & 0x07)+48));
} else if (p_buf[i] == (byte)'\\') {
//escape the backslash character as \\, but need four \\\\ because
//of the parser
l_strbuf.append("\\\\");
} else {
//other characters are left alone
l_strbuf.append((char)p_buf[i]);
}
}
return l_strbuf.toString();
}
/**
* Converts a java byte[] into a PG bytea string (i.e. the text
* representation of the bytea data type)
*/
public static String toPGString(byte[] p_buf) throws SQLException
{
if (p_buf == null)
return null;
StringBuffer l_strbuf = new StringBuffer();
for (int i = 0; i < p_buf.length; i++)
{
int l_int = (int)p_buf[i];
if (l_int < 0)
{
l_int = 256 + l_int;
}
//we escape the same non-printable characters as the backend
//we must escape all 8bit characters otherwise when convering
//from java unicode to the db character set we may end up with
//question marks if the character set is SQL_ASCII
if (l_int < 040 || l_int > 0176)
{
//escape charcter with the form \000, but need two \\ because of
//the parser
l_strbuf.append("\\");
l_strbuf.append((char)(((l_int >> 6) & 0x3) + 48));
l_strbuf.append((char)(((l_int >> 3) & 0x7) + 48));
l_strbuf.append((char)((l_int & 0x07) + 48));
}
else if (p_buf[i] == (byte)'\\')
{
//escape the backslash character as \\, but need four \\\\ because
//of the parser
l_strbuf.append("\\\\");
}
else
{
//other characters are left alone
l_strbuf.append((char)p_buf[i]);
}
}
return l_strbuf.toString();
}
}

View File

@@ -6,102 +6,110 @@ import java.sql.*;
/**
* This implements a class that handles the PostgreSQL money and cash types
*/
public class PGmoney extends PGobject implements Serializable,Cloneable
public class PGmoney extends PGobject implements Serializable, Cloneable
{
/**
* The value of the field
*/
public double val;
/**
* The value of the field
*/
public double val;
/**
* @param value of field
*/
public PGmoney(double value) {
this();
val = value;
}
/**
* @param value of field
*/
public PGmoney(double value)
{
this();
val = value;
}
/**
* This is called mainly from the other geometric types, when a
* point is imbeded within their definition.
*
* @param value Definition of this point in PostgreSQL's syntax
*/
public PGmoney(String value) throws SQLException
{
this();
setValue(value);
}
/**
* This is called mainly from the other geometric types, when a
* point is imbeded within their definition.
*
* @param value Definition of this point in PostgreSQL's syntax
*/
public PGmoney(String value) throws SQLException
{
this();
setValue(value);
}
/**
* Required by the driver
*/
public PGmoney()
{
setType("money");
}
/**
* Required by the driver
*/
public PGmoney()
{
setType("money");
}
/**
* @param s Definition of this point in PostgreSQL's syntax
* @exception SQLException on conversion failure
*/
public void setValue(String s) throws SQLException
{
try {
String s1;
boolean negative;
/**
* @param s Definition of this point in PostgreSQL's syntax
* @exception SQLException on conversion failure
*/
public void setValue(String s) throws SQLException
{
try
{
String s1;
boolean negative;
negative = (s.charAt(0) == '(') ;
negative = (s.charAt(0) == '(') ;
// Remove any () (for negative) & currency symbol
s1 = PGtokenizer.removePara(s).substring(1);
// Remove any () (for negative) & currency symbol
s1 = PGtokenizer.removePara(s).substring(1);
// Strip out any , in currency
int pos = s1.indexOf(',');
while (pos != -1) {
s1 = s1.substring(0,pos) + s1.substring(pos +1);
pos = s1.indexOf(',');
}
// Strip out any , in currency
int pos = s1.indexOf(',');
while (pos != -1)
{
s1 = s1.substring(0, pos) + s1.substring(pos + 1);
pos = s1.indexOf(',');
}
val = Double.valueOf(s1).doubleValue();
val = negative ? -val : val;
val = Double.valueOf(s1).doubleValue();
val = negative ? -val : val;
} catch(NumberFormatException e) {
throw new PSQLException("postgresql.money",e);
}
}
}
catch (NumberFormatException e)
{
throw new PSQLException("postgresql.money", e);
}
}
/**
* @param obj Object to compare with
* @return true if the two boxes are identical
*/
public boolean equals(Object obj)
{
if(obj instanceof PGmoney) {
PGmoney p = (PGmoney)obj;
return val == p.val;
}
return false;
}
/**
* @param obj Object to compare with
* @return true if the two boxes are identical
*/
public boolean equals(Object obj)
{
if (obj instanceof PGmoney)
{
PGmoney p = (PGmoney)obj;
return val == p.val;
}
return false;
}
/**
* This must be overidden to allow the object to be cloned
*/
public Object clone()
{
return new PGmoney(val);
}
/**
* This must be overidden to allow the object to be cloned
*/
public Object clone()
{
return new PGmoney(val);
}
/**
* @return the PGpoint in the syntax expected by org.postgresql
*/
public String getValue()
{
if (val < 0) {
return "-$" + (-val);
}
else {
return "$"+val;
}
}
/**
* @return the PGpoint in the syntax expected by org.postgresql
*/
public String getValue()
{
if (val < 0)
{
return "-$" + ( -val);
}
else
{
return "$" + val;
}
}
}

View File

@@ -6,97 +6,96 @@ import java.sql.*;
import java.util.*;
/**
* org.postgresql.PG_Object is a class used to describe unknown types
* org.postgresql.PG_Object is a class used to describe unknown types
* An unknown type is any type that is unknown by JDBC Standards
*
* <p>As of PostgreSQL 6.3, this allows user code to add their own
* handlers via a call to org.postgresql.Connection. These handlers
* must extend this class.
*/
public class PGobject implements Serializable,Cloneable
public class PGobject implements Serializable, Cloneable
{
protected String type;
protected String value;
/**
* This is called by org.postgresql.Connection.getObject() to create the
* object.
*/
public PGobject()
{
}
/**
* This method sets the type of this object.
*
* <p>It should not be extended by subclasses, hence its final
*
* @param type a string describing the type of the object
*/
public final void setType(String type)
{
this.type = type;
}
/**
* This method sets the value of this object. It must be overidden.
*
* @param value a string representation of the value of the object
* @exception SQLException thrown if value is invalid for this type
*/
public void setValue(String value) throws SQLException
{
this.value = value;
}
/**
* As this cannot change during the life of the object, it's final.
* @return the type name of this object
*/
public final String getType()
{
return type;
}
/**
* This must be overidden, to return the value of the object, in the
* form required by org.postgresql.
* @return the value of this object
*/
public String getValue()
{
return value;
}
/**
* This must be overidden to allow comparisons of objects
* @param obj Object to compare with
* @return true if the two boxes are identical
*/
public boolean equals(Object obj)
{
if(obj instanceof PGobject)
return ((PGobject)obj).getValue().equals(getValue());
return false;
}
/**
* This must be overidden to allow the object to be cloned
*/
public Object clone()
{
PGobject obj = new PGobject();
obj.type=type;
obj.value=value;
return obj;
}
/**
* This is defined here, so user code need not overide it.
* @return the value of this object, in the syntax expected by org.postgresql
*/
public String toString()
{
return getValue();
}
protected String type;
protected String value;
/**
* This is called by org.postgresql.Connection.getObject() to create the
* object.
*/
public PGobject()
{}
/**
* This method sets the type of this object.
*
* <p>It should not be extended by subclasses, hence its final
*
* @param type a string describing the type of the object
*/
public final void setType(String type)
{
this.type = type;
}
/**
* This method sets the value of this object. It must be overidden.
*
* @param value a string representation of the value of the object
* @exception SQLException thrown if value is invalid for this type
*/
public void setValue(String value) throws SQLException
{
this.value = value;
}
/**
* As this cannot change during the life of the object, it's final.
* @return the type name of this object
*/
public final String getType()
{
return type;
}
/**
* This must be overidden, to return the value of the object, in the
* form required by org.postgresql.
* @return the value of this object
*/
public String getValue()
{
return value;
}
/**
* This must be overidden to allow comparisons of objects
* @param obj Object to compare with
* @return true if the two boxes are identical
*/
public boolean equals(Object obj)
{
if (obj instanceof PGobject)
return ((PGobject)obj).getValue().equals(getValue());
return false;
}
/**
* This must be overidden to allow the object to be cloned
*/
public Object clone()
{
PGobject obj = new PGobject();
obj.type = type;
obj.value = value;
return obj;
}
/**
* This is defined here, so user code need not overide it.
* @return the value of this object, in the syntax expected by org.postgresql
*/
public String toString()
{
return getValue();
}
}

View File

@@ -18,180 +18,186 @@ import java.util.*;
*/
public class PGtokenizer
{
// Our tokens
protected Vector tokens;
/**
* Create a tokeniser.
*
* <p>We could have used StringTokenizer to do this, however, we needed to
* handle nesting of '(' ')' '[' ']' '&lt;' and '&gt;' as these are used
* by the geometric data types.
*
* @param string containing tokens
* @param delim single character to split the tokens
*/
public PGtokenizer(String string,char delim)
{
tokenize(string,delim);
}
/**
* This resets this tokenizer with a new string and/or delimiter.
*
* @param string containing tokens
* @param delim single character to split the tokens
*/
public int tokenize(String string,char delim)
{
tokens = new Vector();
// nest holds how many levels we are in the current token.
// if this is > 0 then we don't split a token when delim is matched.
//
// The Geometric datatypes use this, because often a type may have others
// (usualls PGpoint) imbedded within a token.
//
// Peter 1998 Jan 6 - Added < and > to the nesting rules
int nest=0,p,s;
for(p=0,s=0;p<string.length();p++) {
char c = string.charAt(p);
// increase nesting if an open character is found
if(c == '(' || c == '[' || c == '<')
nest++;
// decrease nesting if a close character is found
if(c == ')' || c == ']' || c == '>')
nest--;
if(nest==0 && c==delim) {
tokens.addElement(string.substring(s,p));
s=p+1; // +1 to skip the delimiter
}
}
// Don't forget the last token ;-)
if(s<string.length())
tokens.addElement(string.substring(s));
return tokens.size();
}
/**
* @return the number of tokens available
*/
public int getSize()
{
return tokens.size();
}
/**
* @param n Token number ( 0 ... getSize()-1 )
* @return The token value
*/
public String getToken(int n)
{
return (String)tokens.elementAt(n);
}
/**
* This returns a new tokenizer based on one of our tokens.
*
* The geometric datatypes use this to process nested tokens (usually
* PGpoint).
*
* @param n Token number ( 0 ... getSize()-1 )
* @param delim The delimiter to use
* @return A new instance of PGtokenizer based on the token
*/
public PGtokenizer tokenizeToken(int n,char delim)
{
return new PGtokenizer(getToken(n),delim);
}
/**
* This removes the lead/trailing strings from a string
* @param s Source string
* @param l Leading string to remove
* @param t Trailing string to remove
* @return String without the lead/trailing strings
*/
public static String remove(String s,String l,String t)
{
if(s.startsWith(l)) s = s.substring(l.length());
if(s.endsWith(t)) s = s.substring(0,s.length()-t.length());
return s;
}
/**
* This removes the lead/trailing strings from all tokens
* @param l Leading string to remove
* @param t Trailing string to remove
*/
public void remove(String l,String t)
{
for(int i=0;i<tokens.size();i++) {
tokens.setElementAt(remove((String)tokens.elementAt(i),l,t),i);
}
}
/**
* Removes ( and ) from the beginning and end of a string
* @param s String to remove from
* @return String without the ( or )
*/
public static String removePara(String s)
{
return remove(s,"(",")");
}
/**
* Removes ( and ) from the beginning and end of all tokens
* @return String without the ( or )
*/
public void removePara()
{
remove("(",")");
}
/**
* Removes [ and ] from the beginning and end of a string
* @param s String to remove from
* @return String without the [ or ]
*/
public static String removeBox(String s)
{
return remove(s,"[","]");
}
/**
* Removes [ and ] from the beginning and end of all tokens
* @return String without the [ or ]
*/
public void removeBox()
{
remove("[","]");
}
/**
* Removes &lt; and &gt; from the beginning and end of a string
* @param s String to remove from
* @return String without the &lt; or &gt;
*/
public static String removeAngle(String s)
{
return remove(s,"<",">");
}
/**
* Removes &lt; and &gt; from the beginning and end of all tokens
* @return String without the &lt; or &gt;
*/
public void removeAngle()
{
remove("<",">");
}
// Our tokens
protected Vector tokens;
/**
* Create a tokeniser.
*
* <p>We could have used StringTokenizer to do this, however, we needed to
* handle nesting of '(' ')' '[' ']' '&lt;' and '&gt;' as these are used
* by the geometric data types.
*
* @param string containing tokens
* @param delim single character to split the tokens
*/
public PGtokenizer(String string, char delim)
{
tokenize(string, delim);
}
/**
* This resets this tokenizer with a new string and/or delimiter.
*
* @param string containing tokens
* @param delim single character to split the tokens
*/
public int tokenize(String string, char delim)
{
tokens = new Vector();
// nest holds how many levels we are in the current token.
// if this is > 0 then we don't split a token when delim is matched.
//
// The Geometric datatypes use this, because often a type may have others
// (usualls PGpoint) imbedded within a token.
//
// Peter 1998 Jan 6 - Added < and > to the nesting rules
int nest = 0, p, s;
for (p = 0, s = 0;p < string.length();p++)
{
char c = string.charAt(p);
// increase nesting if an open character is found
if (c == '(' || c == '[' || c == '<')
nest++;
// decrease nesting if a close character is found
if (c == ')' || c == ']' || c == '>')
nest--;
if (nest == 0 && c == delim)
{
tokens.addElement(string.substring(s, p));
s = p + 1; // +1 to skip the delimiter
}
}
// Don't forget the last token ;-)
if (s < string.length())
tokens.addElement(string.substring(s));
return tokens.size();
}
/**
* @return the number of tokens available
*/
public int getSize()
{
return tokens.size();
}
/**
* @param n Token number ( 0 ... getSize()-1 )
* @return The token value
*/
public String getToken(int n)
{
return (String)tokens.elementAt(n);
}
/**
* This returns a new tokenizer based on one of our tokens.
*
* The geometric datatypes use this to process nested tokens (usually
* PGpoint).
*
* @param n Token number ( 0 ... getSize()-1 )
* @param delim The delimiter to use
* @return A new instance of PGtokenizer based on the token
*/
public PGtokenizer tokenizeToken(int n, char delim)
{
return new PGtokenizer(getToken(n), delim);
}
/**
* This removes the lead/trailing strings from a string
* @param s Source string
* @param l Leading string to remove
* @param t Trailing string to remove
* @return String without the lead/trailing strings
*/
public static String remove(String s, String l, String t)
{
if (s.startsWith(l))
s = s.substring(l.length());
if (s.endsWith(t))
s = s.substring(0, s.length() - t.length());
return s;
}
/**
* This removes the lead/trailing strings from all tokens
* @param l Leading string to remove
* @param t Trailing string to remove
*/
public void remove(String l, String t)
{
for (int i = 0;i < tokens.size();i++)
{
tokens.setElementAt(remove((String)tokens.elementAt(i), l, t), i);
}
}
/**
* Removes ( and ) from the beginning and end of a string
* @param s String to remove from
* @return String without the ( or )
*/
public static String removePara(String s)
{
return remove(s, "(", ")");
}
/**
* Removes ( and ) from the beginning and end of all tokens
* @return String without the ( or )
*/
public void removePara()
{
remove("(", ")");
}
/**
* Removes [ and ] from the beginning and end of a string
* @param s String to remove from
* @return String without the [ or ]
*/
public static String removeBox(String s)
{
return remove(s, "[", "]");
}
/**
* Removes [ and ] from the beginning and end of all tokens
* @return String without the [ or ]
*/
public void removeBox()
{
remove("[", "]");
}
/**
* Removes &lt; and &gt; from the beginning and end of a string
* @param s String to remove from
* @return String without the &lt; or &gt;
*/
public static String removeAngle(String s)
{
return remove(s, "<", ">");
}
/**
* Removes &lt; and &gt; from the beginning and end of all tokens
* @return String without the &lt; or &gt;
*/
public void removeAngle()
{
remove("<", ">");
}
}

View File

@@ -8,104 +8,109 @@ import java.sql.*;
*/
public class PSQLException extends SQLException
{
private String message;
private String message;
/**
* This provides the same functionality to SQLException
* @param error Error string
*/
public PSQLException(String error) {
super();
translate(error,null);
}
/**
* A more generic entry point.
* @param error Error string or standard message id
* @param args Array of arguments
*/
public PSQLException(String error,Object[] args)
{
//super();
translate(error,args);
}
/**
* Helper version for 1 arg
*/
public PSQLException(String error,Object arg)
{
super();
Object[] argv = new Object[1];
argv[0] = arg;
translate(error,argv);
}
/**
* Helper version for 1 arg. This is used for debug purposes only with
* some unusual Exception's. It allows the originiating Exceptions stack
* trace to be returned.
*/
public PSQLException(String error,Exception ex)
{
super();
Object[] argv = new Object[1];
try {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
PrintWriter pw = new PrintWriter(baos);
pw.println("Exception: "+ex.toString()+"\nStack Trace:\n");
ex.printStackTrace(pw);
pw.println("End of Stack Trace");
pw.flush();
argv[0] = baos.toString();
pw.close();
baos.close();
} catch(Exception ioe) {
argv[0] = ex.toString()+"\nIO Error on stack trace generation! "+ioe.toString();
}
translate(error,argv);
}
/**
* Helper version for 2 args
*/
public PSQLException(String error,Object arg1,Object arg2)
{
super();
Object[] argv = new Object[2];
argv[0] = arg1;
argv[1] = arg2;
translate(error,argv);
}
private void translate(String error, Object[] args) {
message = MessageTranslator.translate(error,args);
/**
* This provides the same functionality to SQLException
* @param error Error string
*/
public PSQLException(String error)
{
super();
translate(error, null);
}
/**
* Overides Throwable
*/
public String getLocalizedMessage()
{
return message;
}
/**
* A more generic entry point.
* @param error Error string or standard message id
* @param args Array of arguments
*/
public PSQLException(String error, Object[] args)
{
//super();
translate(error, args);
}
/**
* Overides Throwable
*/
public String getMessage()
{
return message;
}
/**
* Helper version for 1 arg
*/
public PSQLException(String error, Object arg)
{
super();
Object[] argv = new Object[1];
argv[0] = arg;
translate(error, argv);
}
/**
* Overides Object
*/
public String toString()
{
return message;
}
/**
* Helper version for 1 arg. This is used for debug purposes only with
* some unusual Exception's. It allows the originiating Exceptions stack
* trace to be returned.
*/
public PSQLException(String error, Exception ex)
{
super();
Object[] argv = new Object[1];
try
{
ByteArrayOutputStream baos = new ByteArrayOutputStream();
PrintWriter pw = new PrintWriter(baos);
pw.println("Exception: " + ex.toString() + "\nStack Trace:\n");
ex.printStackTrace(pw);
pw.println("End of Stack Trace");
pw.flush();
argv[0] = baos.toString();
pw.close();
baos.close();
}
catch (Exception ioe)
{
argv[0] = ex.toString() + "\nIO Error on stack trace generation! " + ioe.toString();
}
translate(error, argv);
}
/**
* Helper version for 2 args
*/
public PSQLException(String error, Object arg1, Object arg2)
{
super();
Object[] argv = new Object[2];
argv[0] = arg1;
argv[1] = arg2;
translate(error, argv);
}
private void translate(String error, Object[] args)
{
message = MessageTranslator.translate(error, args);
}
/**
* Overides Throwable
*/
public String getLocalizedMessage()
{
return message;
}
/**
* Overides Throwable
*/
public String getMessage()
{
return message;
}
/**
* Overides Object
*/
public String toString()
{
return message;
}
}

View File

@@ -19,11 +19,11 @@ import java.sql.*;
* a table to be used as a data type. However, Postgres support of
* this feature is incomplete. The basic ability to create and use
* a table as a field type in another table exists:<br>
* CREATE TABLE myclass( var1 TEXT, var2 INTEGER );<br>
* CREATE TABLE othertable( field1 TEXT, field2 myclass );<br>
* INSERT INTO myclass VALUES ('Hello', 1);<br>
* INSERT INTO othertable VALUES ('World', xxxx::myclass);<br>
* where xxxx is the OID of a row in myclass<br>
* CREATE TABLE myclass( var1 TEXT, var2 INTEGER );<br>
* CREATE TABLE othertable( field1 TEXT, field2 myclass );<br>
* INSERT INTO myclass VALUES ('Hello', 1);<br>
* INSERT INTO othertable VALUES ('World', xxxx::myclass);<br>
* where xxxx is the OID of a row in myclass<br>
* This lets othertable reference a myclass instance but
* the support to actually make any use of the myclass data type
* is not there. For instance, you cannot compare the myclass field
@@ -33,13 +33,13 @@ import java.sql.*;
* syntax appears to work.<p>
*
* Queries like:<br>
* SELECT othertable.field2.var1 FROM othertable;<br>
* SELECT othertable.field2.var1 FROM othertable;<br>
* will not work but were suggested in the original Postgres
* design documents.<p>
* Because support is incomplete for table data types, tables
* such as othertable that hold java instances should also
* hold an oid field for the same java instance:<br>
* CREATE othertable( field1 TEXT, field2 myclass, myclassOID oid);<br>
* CREATE othertable( field1 TEXT, field2 myclass, myclassOID oid);<br>
* This oid-type field would be set with setInt() immediately after
* setting the myclass-type field with setObject(). The order of these
* set calls matters since the oid is not available until after
@@ -107,230 +107,271 @@ import java.sql.*;
*/
public class Serialize
{
// This is the connection that the instance refers to
protected org.postgresql.Connection conn;
// This is the connection that the instance refers to
protected org.postgresql.Connection conn;
// This is the table name
protected String tableName;
// This is the table name
protected String tableName;
// This is the class name
protected String className;
// This is the class name
protected String className;
// This is the Class for this serialzed object
protected Class ourClass;
// This is the Class for this serialzed object
protected Class ourClass;
/**
* This creates an instance that can be used to serialize or deserialize
* a Java object from a PostgreSQL table.
*/
public Serialize(org.postgresql.Connection c,String type) throws SQLException
{
try {
conn = c;
DriverManager.println("Serialize: initializing instance for type: " + type);
tableName = toPostgreSQL(type);
className = type;
ourClass = Class.forName(className);
} catch(ClassNotFoundException cnfe) {
DriverManager.println("Serialize: " + className + " java class not found");
throw new PSQLException("postgresql.serial.noclass",type);
}
// Second check, the type must be a table
boolean status = false;
ResultSet rs = conn.ExecSQL("select typname from pg_type,pg_class where typname=relname and typname='" + tableName + "'");
if(rs!=null) {
if(rs.next()) {
status = true;
DriverManager.println("Serialize: " + tableName + " table found");
/**
* This creates an instance that can be used to serialize or deserialize
* a Java object from a PostgreSQL table.
*/
public Serialize(org.postgresql.Connection c, String type) throws SQLException
{
try
{
conn = c;
DriverManager.println("Serialize: initializing instance for type: " + type);
tableName = toPostgreSQL(type);
className = type;
ourClass = Class.forName(className);
}
rs.close();
catch (ClassNotFoundException cnfe)
{
DriverManager.println("Serialize: " + className + " java class not found");
throw new PSQLException("postgresql.serial.noclass", type);
}
// Second check, the type must be a table
boolean status = false;
ResultSet rs = conn.ExecSQL("select typname from pg_type,pg_class where typname=relname and typname='" + tableName + "'");
if (rs != null)
{
if (rs.next())
{
status = true;
DriverManager.println("Serialize: " + tableName + " table found");
}
rs.close();
}
// This should never occur, as org.postgresql has it's own internal checks
if (!status)
{
DriverManager.println("Serialize: " + tableName + " table not found");
throw new PSQLException("postgresql.serial.table", type);
}
// Finally cache the fields within the table
}
// This should never occur, as org.postgresql has it's own internal checks
if(!status) {
DriverManager.println("Serialize: " + tableName + " table not found");
throw new PSQLException("postgresql.serial.table",type);
/**
* Constructor when Object is passed in
*/
public Serialize(org.postgresql.Connection c, Object o) throws SQLException
{
this(c, o.getClass().getName());
}
// Finally cache the fields within the table
}
/**
* Constructor when Object is passed in
*/
public Serialize(org.postgresql.Connection c,Object o) throws SQLException
{
this(c, o.getClass().getName());
}
/**
* Constructor when Class is passed in
*/
public Serialize(org.postgresql.Connection c, Class cls) throws SQLException
{
this(c, cls.getName());
}
/**
* Constructor when Class is passed in
*/
public Serialize(org.postgresql.Connection c, Class cls) throws SQLException
{
this(c, cls.getName());
}
/**
* This fetches an object from a table, given it's OID
* @param oid The oid of the object
* @return Object relating to oid
* @exception SQLException on error
*/
/**
* This fetches an object from a table, given it's OID
* @param oid The oid of the object
* @return Object relating to oid
* @exception SQLException on error
*/
public Object fetch(int oid) throws SQLException
{
try {
try
{
DriverManager.println("Serialize.fetch: " + "attempting to instantiate object of type: " + ourClass.getName() );
Object obj = ourClass.newInstance();
Object obj = ourClass.newInstance();
DriverManager.println("Serialize.fetch: " + "instantiated object of type: " + ourClass.getName() );
// NB: we use java.lang.reflect here to prevent confusion with
// the org.postgresql.Field
// NB: we use java.lang.reflect here to prevent confusion with
// the org.postgresql.Field
// used getFields to get only public fields. We have no way to set values
// for other declarations. Maybe look for setFieldName() methods?
java.lang.reflect.Field f[] = ourClass.getFields();
boolean hasOID=false;
int oidFIELD=-1;
// used getFields to get only public fields. We have no way to set values
// for other declarations. Maybe look for setFieldName() methods?
java.lang.reflect.Field f[] = ourClass.getFields();
boolean hasOID = false;
int oidFIELD = -1;
StringBuffer sb = new StringBuffer("select");
char sep=' ';
// build a select for the fields. Look for the oid field to use in the where
for(int i=0;i<f.length;i++) {
StringBuffer sb = new StringBuffer("select");
char sep = ' ';
// build a select for the fields. Look for the oid field to use in the where
for (int i = 0;i < f.length;i++)
{
String n = f[i].getName();
if(n.equals("oid")) {
hasOID=true;
oidFIELD=i;
if (n.equals("oid"))
{
hasOID = true;
oidFIELD = i;
}
sb.append(sep);
sb.append(n);
sep=',';
}
sb.append(" from ");
sb.append(tableName);
sb.append(" where oid=");
sb.append(oid);
sep = ',';
}
sb.append(" from ");
sb.append(tableName);
sb.append(" where oid=");
sb.append(oid);
DriverManager.println("Serialize.fetch: " + sb.toString());
ResultSet rs = conn.ExecSQL(sb.toString());
DriverManager.println("Serialize.fetch: " + sb.toString());
ResultSet rs = conn.ExecSQL(sb.toString());
if(rs!=null) {
if(rs.next()) {
for(int i=0;i<f.length;i++) {
if( !Modifier.isFinal(f[i].getModifiers()) ) {
if( f[i].getType().getName().equals("short") )
f[i].setShort(obj, rs.getShort(i+1));
else if( f[i].getType().getName().equals("char") )
f[i].setChar(obj, rs.getString(i+1).toCharArray()[0]);
else if( f[i].getType().getName().equals("byte"))
f[i].setByte(obj, rs.getByte(i+1));
else if( f[i].getType().getName().equals("boolean") ) {
if (rs != null)
{
if (rs.next())
{
for (int i = 0;i < f.length;i++)
{
if ( !Modifier.isFinal(f[i].getModifiers()) )
{
if ( f[i].getType().getName().equals("short") )
f[i].setShort(obj, rs.getShort(i + 1));
else if ( f[i].getType().getName().equals("char") )
f[i].setChar(obj, rs.getString(i + 1).toCharArray()[0]);
else if ( f[i].getType().getName().equals("byte"))
f[i].setByte(obj, rs.getByte(i + 1));
else if ( f[i].getType().getName().equals("boolean") )
{
// booleans come out of pgsql as a t or an f
if( rs.getString(i+1).equals("t") ) f[i].setBoolean(obj, true);
else f[i].setBoolean(obj, false);
} else f[i].set(obj,rs.getObject(i+1));
if ( rs.getString(i + 1).equals("t") )
f[i].setBoolean(obj, true);
else
f[i].setBoolean(obj, false);
}
else
f[i].set(obj, rs.getObject(i + 1));
}
}
}
rs.close();
} else throw new PSQLException("postgresql.unexpected");
}
else
throw new PSQLException("postgresql.unexpected");
return obj;
return obj;
} catch(IllegalAccessException iae) {
}
catch (IllegalAccessException iae)
{
throw new SQLException(iae.toString());
} catch(InstantiationException ie) {
}
catch (InstantiationException ie)
{
throw new SQLException(ie.toString());
}
}
/**
* This stores an object into a table, returning it's OID.<p>
*
* If the object has an int called OID, and it is > 0, then
* that value is used for the OID, and the table will be updated.
* If the value of OID is 0, then a new row will be created, and the
* value of OID will be set in the object. This enables an object's
* value in the database to be updateable.
*
* If the object has no int called OID, then the object is stored. However
* if the object is later retrieved, amended and stored again, it's new
* state will be appended to the table, and will not overwrite the old
* entries.
*
* @param o Object to store (must implement Serializable)
* @return oid of stored object
* @exception SQLException on error
*/
/**
* This stores an object into a table, returning it's OID.<p>
*
* If the object has an int called OID, and it is > 0, then
* that value is used for the OID, and the table will be updated.
* If the value of OID is 0, then a new row will be created, and the
* value of OID will be set in the object. This enables an object's
* value in the database to be updateable.
*
* If the object has no int called OID, then the object is stored. However
* if the object is later retrieved, amended and stored again, it's new
* state will be appended to the table, and will not overwrite the old
* entries.
*
* @param o Object to store (must implement Serializable)
* @return oid of stored object
* @exception SQLException on error
*/
public int store(Object o) throws SQLException
{
try {
// NB: we use java.lang.reflect here to prevent confusion with
try
{
// NB: we use java.lang.reflect here to prevent confusion with
// the org.postgresql.Field
// don't save private fields since we would not be able to fetch them
java.lang.reflect.Field f[] = ourClass.getFields();
boolean hasOID=false;
int oidFIELD=-1;
boolean update=false;
boolean hasOID = false;
int oidFIELD = -1;
boolean update = false;
// Find out if we have an oid value
for(int i=0;i<f.length;i++) {
for (int i = 0;i < f.length;i++)
{
String n = f[i].getName();
if(n.equals("oid")) {
hasOID=true;
oidFIELD=i;
if (n.equals("oid"))
{
hasOID = true;
oidFIELD = i;
// Do update if oid != 0
update = f[i].getInt(o) > 0;
}
}
StringBuffer sb = new StringBuffer(update?"update "+tableName+" set":"insert into "+tableName+" ");
char sep=update?' ':'(';
for(int i=0;i<f.length;i++) {
StringBuffer sb = new StringBuffer(update ? "update " + tableName + " set" : "insert into " + tableName + " ");
char sep = update ? ' ' : '(';
for (int i = 0;i < f.length;i++)
{
String n = f[i].getName();
// oid cannot be updated!
if( n.equals("oid") ) continue;
if ( n.equals("oid") )
continue;
sb.append(sep);
sep=',';
sep = ',';
sb.append(n);
if(update) {
if (update)
{
sb.append('=');
// handle unset values
if (f[i].get(o) == null)
sb.append("null");
else if(
f[i].getType().getName().equals("java.lang.String")
|| f[i].getType().getName().equals("char") ) {
else if (
f[i].getType().getName().equals("java.lang.String")
|| f[i].getType().getName().equals("char") )
{
sb.append('\'');
// don't allow single qoutes or newlines in the string
sb.append(fixString(f[i].get(o).toString()));
sb.append('\'');
} else sb.append(f[i].get(o).toString());
}
else
sb.append(f[i].get(o).toString());
}
}
if(update) sb.append(" where oid = " + f[oidFIELD].getInt(o) );
if (update)
sb.append(" where oid = " + f[oidFIELD].getInt(o) );
if(!update) {
if (!update)
{
sb.append(") values ");
sep='(';
for(int i=0;i<f.length;i++) {
sep = '(';
for (int i = 0;i < f.length;i++)
{
String n = f[i].getName();
// oid cannot be set!
if( n.equals("oid") ) continue;
if ( n.equals("oid") )
continue;
sb.append(sep);
sep=',';
sep = ',';
// handle unset values
if (f[i].get(o) == null) sb.append("null");
else if(
f[i].getType().getName().equals("java.lang.String")
|| f[i].getType().getName().equals("char")) {
if (f[i].get(o) == null)
sb.append("null");
else if (
f[i].getType().getName().equals("java.lang.String")
|| f[i].getType().getName().equals("char"))
{
sb.append('\'');
// don't allow single quotes or newlines in the string
sb.append(fixString(f[i].get(o).toString()));
sb.append('\'');
} else sb.append(f[i].get(o).toString());
}
else
sb.append(f[i].get(o).toString());
}
sb.append(')');
}
@@ -339,23 +380,30 @@ public class Serialize
org.postgresql.ResultSet rs = (org.postgresql.ResultSet) conn.ExecSQL(sb.toString());
// fetch the OID for returning
if(update) {
if (update)
{
// object has oid already, so return it
if(rs!=null) rs.close();
if (rs != null)
rs.close();
return f[oidFIELD].getInt(o);
} else {
}
else
{
// new record inserted has new oid; rs should be not null
int newOID = ((org.postgresql.ResultSet)rs).getInsertedOID();
rs.close();
// update the java object's oid field if it has the oid field
if(hasOID) f[oidFIELD].setInt(o,newOID);
if (hasOID)
f[oidFIELD].setInt(o, newOID);
// new object stored, return newly inserted oid
return newOID;
}
} catch(IllegalAccessException iae) {
}
catch (IllegalAccessException iae)
{
throw new SQLException(iae.toString());
}
}
}
/**
@@ -363,106 +411,121 @@ public class Serialize
* Otherwise, postgres will bomb on the single quote and remove the
* the backslashes.
*/
private String fixString(String s) {
private String fixString(String s)
{
int idx = -1;
// handle null
if (s == null)
return "";
if (s == null)
return "";
// if the string has single quotes in it escape them as ''
if ((idx = s.indexOf("'")) > -1) {
StringBuffer buf = new StringBuffer();
StringTokenizer tok = new StringTokenizer(s, "'");
// handle quote as 1St charater
if (idx > 0) buf.append(tok.nextToken());
// if the string has single quotes in it escape them as ''
if ((idx = s.indexOf("'")) > -1)
{
StringBuffer buf = new StringBuffer();
StringTokenizer tok = new StringTokenizer(s, "'");
// handle quote as 1St charater
if (idx > 0)
buf.append(tok.nextToken());
while(tok.hasMoreTokens())
buf.append("''").append(tok.nextToken());
while (tok.hasMoreTokens())
buf.append("''").append(tok.nextToken());
s = buf.toString();
}
s = buf.toString();
}
// if the string has backslashes in it escape them them as \\
if ((idx = s.indexOf("\\")) > -1) {
StringBuffer buf = new StringBuffer();
StringTokenizer tok = new StringTokenizer(s, "\\");
if (idx > 0) buf.append(tok.nextToken());
// if the string has backslashes in it escape them them as \\
if ((idx = s.indexOf("\\")) > -1)
{
StringBuffer buf = new StringBuffer();
StringTokenizer tok = new StringTokenizer(s, "\\");
if (idx > 0)
buf.append(tok.nextToken());
while(tok.hasMoreTokens())
buf.append("\\\\").append(tok.nextToken());
while (tok.hasMoreTokens())
buf.append("\\\\").append(tok.nextToken());
s = buf.toString();
}
s = buf.toString();
}
return s;
}
return s;
}
/**
* This method is not used by the driver, but it creates a table, given
* a Serializable Java Object. It should be used before serializing any
* objects.
* @param c Connection to database
* @param o Object to base table on
* @exception SQLException on error
*/
public static void create(org.postgresql.Connection con,Object o) throws SQLException
{
create(con,o.getClass());
}
/**
* This method is not used by the driver, but it creates a table, given
* a Serializable Java Object. It should be used before serializing any
* objects.
* @param c Connection to database
* @param o Class to base table on
* @exception SQLException on error
*/
public static void create(org.postgresql.Connection con,Class c) throws SQLException
/**
* This method is not used by the driver, but it creates a table, given
* a Serializable Java Object. It should be used before serializing any
* objects.
* @param c Connection to database
* @param o Object to base table on
* @exception SQLException on error
*/
public static void create(org.postgresql.Connection con, Object o) throws SQLException
{
if(c.isInterface()) throw new PSQLException("postgresql.serial.interface");
create(con, o.getClass());
}
/**
* This method is not used by the driver, but it creates a table, given
* a Serializable Java Object. It should be used before serializing any
* objects.
* @param c Connection to database
* @param o Class to base table on
* @exception SQLException on error
*/
public static void create(org.postgresql.Connection con, Class c) throws SQLException
{
if (c.isInterface())
throw new PSQLException("postgresql.serial.interface");
// See if the table exists
String tableName = toPostgreSQL(c.getName());
ResultSet rs = con.ExecSQL("select relname from pg_class where relname = '"+tableName+"'");
if( rs.next() ) {
DriverManager.println("Serialize.create: table "+tableName+" exists, skipping");
ResultSet rs = con.ExecSQL("select relname from pg_class where relname = '" + tableName + "'");
if ( rs.next() )
{
DriverManager.println("Serialize.create: table " + tableName + " exists, skipping");
rs.close();
return;
return ;
}
// else table not found, so create it
DriverManager.println("Serialize.create: table " + tableName + " not found, creating" );
// No entries returned, so the table doesn't exist
// No entries returned, so the table doesn't exist
StringBuffer sb = new StringBuffer("create table ");
sb.append(tableName);
char sep='(';
StringBuffer sb = new StringBuffer("create table ");
sb.append(tableName);
char sep = '(';
// java.lang.reflect.Field[] fields = c.getDeclaredFields();
// Only store public fields, another limitation!
java.lang.reflect.Field[] fields = c.getFields();
for(int i=0;i<fields.length;i++) {
java.lang.reflect.Field[] fields = c.getFields();
for (int i = 0;i < fields.length;i++)
{
Class type = fields[i].getType();
// oid is a special field
if(!fields[i].getName().equals("oid")) {
if (!fields[i].getName().equals("oid"))
{
sb.append(sep);
sb.append(fields[i].getName());
sb.append(' ');
sep=',';
sep = ',';
if(type.isArray()) {
if (type.isArray())
{
// array handling
} else {
}
else
{
// convert the java type to org.postgresql, recursing if a class
// is found
String n = type.getName();
int j=0;
for(;j<tp.length && !tp[j][0].equals(n);j++);
if(j<tp.length) sb.append(tp[j][1]);
else {
int j = 0;
for (;j < tp.length && !tp[j][0].equals(n);j++)
;
if (j < tp.length)
sb.append(tp[j][1]);
else
{
create(con, type);
sb.append(toPostgreSQL(n));
}
@@ -476,71 +539,72 @@ public class Serialize
con.ExecSQL(sb.toString());
}
// This is used to translate between Java primitives and PostgreSQL types.
private static final String tp[][] = {
// {"boolean", "int1"},
{"boolean", "bool"},
{"double", "float8"},
{"float", "float4"},
{"int", "int4"},
// {"long", "int4"},
{"long", "int8"},
{"short", "int2"},
{"java.lang.String", "text"},
{"java.lang.Integer", "int4"},
{"java.lang.Float", "float4"},
{"java.lang.Double", "float8"},
{"java.lang.Short", "int2"},
{"char", "char"},
{"byte", "int2"}
};
// This is used to translate between Java primitives and PostgreSQL types.
private static final String tp[][] = {
// {"boolean", "int1"},
{"boolean", "bool"},
{"double", "float8"},
{"float", "float4"},
{"int", "int4"},
// {"long", "int4"},
{"long", "int8"},
{"short", "int2"},
{"java.lang.String", "text"},
{"java.lang.Integer", "int4"},
{"java.lang.Float", "float4"},
{"java.lang.Double", "float8"},
{"java.lang.Short", "int2"},
{"char", "char"},
{"byte", "int2"}
};
/**
* This converts a Java Class name to a org.postgresql table, by replacing . with
* _<p>
*
* Because of this, a Class name may not have _ in the name.<p>
* Another limitation, is that the entire class name (including packages)
* cannot be longer than 32 characters (a limit forced by PostgreSQL).
*
* @param name Class name
* @return PostgreSQL table name
* @exception SQLException on error
*/
public static String toPostgreSQL(String name) throws SQLException
{
name = name.toLowerCase();
/**
* This converts a Java Class name to a org.postgresql table, by replacing . with
* _<p>
*
* Because of this, a Class name may not have _ in the name.<p>
* Another limitation, is that the entire class name (including packages)
* cannot be longer than 32 characters (a limit forced by PostgreSQL).
*
* @param name Class name
* @return PostgreSQL table name
* @exception SQLException on error
*/
public static String toPostgreSQL(String name) throws SQLException
{
name = name.toLowerCase();
if(name.indexOf("_")>-1)
throw new PSQLException("postgresql.serial.underscore");
if (name.indexOf("_") > -1)
throw new PSQLException("postgresql.serial.underscore");
// Postgres table names can only be 32 character long.
// Reserve 1 char, so allow only up to 31 chars.
// If the full class name with package is too long
// then just use the class name. If the class name is
// too long throw an exception.
//
if( name.length() > 31 ) {
name = name.substring(name.lastIndexOf(".") + 1);
if( name.length() >31 )
throw new PSQLException("postgresql.serial.namelength",name,new Integer(name.length()));
}
return name.replace('.','_');
}
// Postgres table names can only be 32 character long.
// Reserve 1 char, so allow only up to 31 chars.
// If the full class name with package is too long
// then just use the class name. If the class name is
// too long throw an exception.
//
if ( name.length() > 31 )
{
name = name.substring(name.lastIndexOf(".") + 1);
if ( name.length() > 31 )
throw new PSQLException("postgresql.serial.namelength", name, new Integer(name.length()));
}
return name.replace('.', '_');
}
/**
* This converts a org.postgresql table to a Java Class name, by replacing _ with
* .<p>
*
* @param name PostgreSQL table name
* @return Class name
* @exception SQLException on error
*/
public static String toClassName(String name) throws SQLException
{
name = name.toLowerCase();
return name.replace('_','.');
}
/**
* This converts a org.postgresql table to a Java Class name, by replacing _ with
* .<p>
*
* @param name PostgreSQL table name
* @return Class name
* @exception SQLException on error
*/
public static String toClassName(String name) throws SQLException
{
name = name.toLowerCase();
return name.replace('_', '.');
}
}

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