static void genclass(DelegatorGenerator dg, Class intfcl, String fqcn, File srcroot)
throws IOException {
File genDir = new File(srcroot, dirForFqcn(fqcn));
if (!genDir.exists()) {
System.err.println(
JdbcProxyGenerator.class.getName()
+ " -- creating directory: "
+ genDir.getAbsolutePath());
genDir.mkdirs();
}
String fileName = CodegenUtils.fqcnLastElement(fqcn) + ".java";
Writer w = null;
try {
w = new BufferedWriter(new FileWriter(new File(genDir, fileName)));
dg.writeDelegator(intfcl, fqcn, w);
w.flush();
System.err.println("Generated " + fileName);
} finally {
try {
if (w != null) w.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
protected void generateExtraDeclarations(Class intfcl, String genclass, IndentedWriter iw)
throws IOException {
super.generateExtraDeclarations(intfcl, genclass, iw);
iw.println();
iw.println("NewProxyConnection proxyCon;");
iw.println();
iw.print(CodegenUtils.fqcnLastElement(genclass));
iw.println(
"( "
+ CodegenUtils.simpleClassName(intfcl)
+ " inner, NewPooledConnection parentPooledConnection, NewProxyConnection proxyCon )");
iw.println("{");
iw.upIndent();
iw.println("this( inner, parentPooledConnection );");
iw.println("this.proxyCon = proxyCon;");
iw.downIndent();
iw.println("}");
}
protected void generateExtraDeclarations(Class intfcl, String genclass, IndentedWriter iw)
throws IOException {
super.generateExtraDeclarations(intfcl, genclass, iw);
iw.println();
iw.println("Object creator;");
iw.println("Object creatorProxy;");
iw.println("NewProxyConnection proxyConn;");
iw.println();
iw.print(CodegenUtils.fqcnLastElement(genclass));
iw.println(
"( "
+ CodegenUtils.simpleClassName(intfcl)
+ " inner, NewPooledConnection parentPooledConnection, Object c, Object cProxy )");
iw.println("{");
iw.upIndent();
iw.println("this( inner, parentPooledConnection );");
iw.println("this.creator = c;");
iw.println("this.creatorProxy = cProxy;");
iw.println(
"if (creatorProxy instanceof NewProxyConnection) this.proxyConn = (NewProxyConnection) cProxy;");
iw.downIndent();
iw.println("}");
}
protected void generateExtraDeclarations(Class intfcl, String genclass, IndentedWriter iw)
throws IOException {
// premature-detach-debug-debug only!
if (PREMATURE_DETACH_DEBUG) {
iw.println("com.mchange.v2.debug.ThreadNameStackTraceRecorder prematureDetachRecorder");
iw.upIndent();
iw.println(
"= new com.mchange.v2.debug.ThreadNameStackTraceRecorder(\042Premature Detach Recorder\042);");
iw.downIndent();
}
// end-premature-detach-debug-only!
iw.println("private final static MLogger logger = MLog.getLogger( \042" + genclass + "\042 );");
iw.println();
iw.println("volatile NewPooledConnection parentPooledConnection;");
iw.println();
iw.println("ConnectionEventListener cel = new ConnectionEventListener()");
iw.println("{");
iw.upIndent();
iw.println("public void connectionErrorOccurred(ConnectionEvent evt)");
iw.println(
"{ /* DON'T detach()... IGNORE -- this could be an ordinary error. Leave it to the PooledConnection to test, but leave proxies intact */ }");
// BAD puppy -- iw.println("{ detach(); }");
iw.println();
iw.println("public void connectionClosed(ConnectionEvent evt)");
iw.println("{ detach(); }");
iw.downIndent();
iw.println("};");
iw.println();
iw.println("void attach( NewPooledConnection parentPooledConnection )");
iw.println("{");
iw.upIndent();
// iw.println("System.err.println( \"attach( \" + parentPooledConnection + \" )\" );");
iw.println("this.parentPooledConnection = parentPooledConnection;");
iw.println("parentPooledConnection.addConnectionEventListener( cel );");
iw.downIndent();
iw.println("}");
iw.println();
iw.println("private void detach()");
iw.println("{");
iw.upIndent();
// factored out so we could define debug versions...
writeDetachBody(iw);
iw.downIndent();
iw.println("}");
iw.println();
iw.print(CodegenUtils.fqcnLastElement(genclass));
iw.println(
"( "
+ CodegenUtils.simpleClassName(intfcl)
+ " inner, NewPooledConnection parentPooledConnection )");
iw.println("{");
iw.upIndent();
iw.println("this( inner );");
iw.println("attach( parentPooledConnection );");
generateExtraConstructorCode(intfcl, genclass, iw);
iw.downIndent();
iw.println("}");
iw.println();
iw.println("boolean isDetached()");
iw.println("{ return (this.parentPooledConnection == null); }");
iw.println();
iw.println(
"public String toString() { return super.toString() + \042 [wrapping: \042 + inner + \042]\042; }");
/*
// Support JDBC4 Wrapper interface
String wrappedLiteral = intfcl.getName() + ".class";
iw.println();
iw.println("public boolean isWrapperFor(Class<?> iface) throws SQLException");
iw.println("{");
iw.upIndent();
iw.println("return ( " + wrappedLiteral + "== iface || " + wrappedLiteral + ".isAssignableFrom( iface ) );" );
iw.downIndent();
iw.println("}");
iw.println();
iw.println("public <T> T unwrap(Class<T> iface) throws SQLException");
iw.println("{");
iw.upIndent();
iw.println("if (this.isWrapperFor( iface )) return inner;");
iw.println("else throw new SQLException( this + \042 is not a wrapper for \042 + iface.getName());");
iw.downIndent();
iw.println("}");
*/
iw.println();
generateIsWrapperHelperMethods(intfcl, iw);
}
protected void generateExtraDeclarations(Class intfcl, String genclass, IndentedWriter iw)
throws IOException {
super.generateExtraDeclarations(intfcl, genclass, iw);
iw.println();
// concurrent-access-debug only!
if (CONCURRENT_ACCESS_DEBUG) {
iw.println("com.mchange.v2.debug.ThreadNameStackTraceRecorder concurrentAccessRecorder");
iw.upIndent();
iw.println(
"= new com.mchange.v2.debug.ThreadNameStackTraceRecorder(\042Concurrent Access Recorder\042);");
iw.downIndent();
}
// end concurrent-access-debug only!
iw.println("boolean is_cached;");
iw.println("NewProxyConnection creatorProxy;");
iw.println();
iw.println("// Although formally unnecessary, we sync access to myProxyResultSets on");
iw.println("// that set's own lock, in case clients (illegally but not uncommonly) close()");
iw.println("// the Statement from a Thread other than the one they use in general");
iw.println("// with the Statement");
iw.println("HashSet myProxyResultSets = new HashSet();");
iw.println();
iw.println("public void detachProxyResultSet( ResultSet prs )");
iw.println("{");
iw.upIndent();
// iw.println("System.err.println(\042detachProxyResultSet\042);");
iw.println("synchronized (myProxyResultSets) { myProxyResultSets.remove( prs ); }");
iw.downIndent();
iw.println("}");
iw.println();
iw.print(CodegenUtils.fqcnLastElement(genclass));
iw.println(
"( "
+ CodegenUtils.simpleClassName(intfcl)
+ " inner, NewPooledConnection parentPooledConnection, boolean cached, NewProxyConnection cProxy )");
iw.println("{");
iw.upIndent();
iw.println("this( inner, parentPooledConnection );");
iw.println("this.is_cached = cached;");
iw.println("this.creatorProxy = cProxy;");
iw.downIndent();
iw.println("}");
iw.println();
iw.println(
"public Object rawStatementOperation(Method m, Object target, Object[] args) "
+ "throws IllegalAccessException, InvocationTargetException, SQLException");
iw.println("{");
iw.upIndent();
iw.println("maybeDirtyTransaction();");
iw.println();
iw.println("if (target == C3P0ProxyStatement.RAW_STATEMENT) target = inner;");
iw.println("for (int i = 0, len = args.length; i < len; ++i)");
iw.upIndent();
iw.println("if (args[i] == C3P0ProxyStatement.RAW_STATEMENT) args[i] = inner;");
iw.downIndent();
iw.println("Object out = m.invoke(target, args);");
iw.println("if (out instanceof ResultSet)");
iw.println("{");
iw.upIndent();
iw.println("ResultSet innerResultSet = (ResultSet) out;");
iw.println(
"parentPooledConnection.markActiveResultSetForStatement( inner, innerResultSet );");
iw.println(
"out = new NewProxyResultSet( innerResultSet, parentPooledConnection, inner, this );");
iw.downIndent();
iw.println("}");
iw.println();
iw.println("return out;");
iw.downIndent();
iw.println("}");
iw.println();
iw.println("void maybeDirtyTransaction()");
iw.println("{ if (creatorProxy != null) creatorProxy.maybeDirtyTransaction(); }");
}