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The Open Source version of the IBM Toolbox for Java
import java.io.*;
import java.util.ArrayList;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.DirectoryScanner;
import org.apache.tools.ant.taskdefs.MatchingTask;
public class Jdbc40Task extends MatchingTask
{
static final String copyright = "Copyright (C) 2009-2019 International Business Machines Corporation and others.";
private boolean verbose_;
private File destDir_; // destination directory -- contains files which will be reprocessed
// existing files will be overwritten by processed source files
private File srcDir_; // source directory where source files will come from
private File sourcelist_;
private int numFilesProcessed_ = 0; // count of class files processed
public void setSourcelist(File sourcelist)
{
sourcelist_ = sourcelist;
}
public void setDestdir(File destDir)
{
destDir_ = destDir;
}
public void setSrcdir (File srcDir) {
srcDir_ = srcDir;
}
public void setVerbose(boolean verbose)
{
verbose_ = verbose;
}
// Executes the task.
public void execute() throws BuildException
{
BuildException lastException = null;
ArrayList list = new ArrayList();
try {
BufferedReader reader = new BufferedReader(new FileReader(sourcelist_));
String line = reader.readLine();
while (line != null) {
line = line.trim();
if (line.length() > 0) {
if (line.charAt(0)=='#') {
// Skip
} else {
list.add(line);
}
}
line = reader.readLine();
}
} catch (Exception e) {
if (verbose_) {
System.out.println("Error ("+e+ ") processing "+sourcelist_);
e.printStackTrace(System.out);
}
BuildException be = new BuildException("Error ("+e+ ") processing "+sourcelist_);
be.initCause(e);
throw be;
}
String[] destFileNames = new String[list.size()];
for (int i = 0; i < destFileNames.length; i++) {
destFileNames[i] = (String) list.get(i);
}
for (int i=0; i 0) {
createJdbc40File(filename);
}
} catch (BuildException e) {
System.out.println(e.toString());
lastException = e;
}
numFilesProcessed_++;
}
System.out.println("Number of files processed: " + numFilesProcessed_);
if (lastException != null) throw lastException ;
}
final static int STATE_NONE=0;
final static int STATE_IFDEF40=1;
final static int STATE_IFNDEF40=2;
final static int FOUND_NONE=0;
final static int FOUND_IFDEF40=1;
final static int FOUND_IFNDEF40=2;
final static int FOUND_ENDIF=3;
final static int FOUND_COMMENT=4; /* is any type of comment begin/end found */
final static int FOUND_JDBC40DOC = 5;
private int getLineType(String line, String filename, int lineNumber) {
String originalLine = line;
int typeCode = FOUND_NONE;
line = line.trim();
if (line.indexOf("/*") == 0) {
line = line.substring(2).trim();
if (line.indexOf("ifdef")== 0) {
line = line.substring(5).trim();
if (line.indexOf("JDBC40") == 0) {
typeCode = FOUND_IFDEF40;
line = line.substring(6).trim();
if (line.length() > 0) {
System.out.println("Warning. Incorrect ifdef line '"+originalLine+"' at "+filename+":"+lineNumber);
}
}
} else if (line.indexOf("ifndef")== 0) {
line = line.substring(6).trim();
if (line.indexOf("JDBC40") == 0) {
typeCode = FOUND_IFNDEF40;
line = line.substring(6).trim();
if (line.indexOf("*/") != 0) {
System.out.println("Warning. Incorrect ifndef line '"+originalLine+"' at "+filename+":"+lineNumber);
}
}
} else if (line.indexOf("endif") == 0) {
line = line.substring(5).trim();
if (line.indexOf("*/") == 0) {
typeCode = FOUND_ENDIF;
} else {
System.out.println("Warning. Invalid /* endif */ structure: '"+line+"' at "+filename+":"+lineNumber);
}
} else {
typeCode = FOUND_COMMENT;
}
} else if (line.indexOf("endif") == 0) {
line = line.substring(5).trim();
if (line.indexOf("*/") == 0) {
typeCode = FOUND_ENDIF;
} else {
System.out.println("Warning. Invalid endif */ structure: '"+line+"' at "+filename+":"+lineNumber);
}
} else if (line.indexOf("endif") > 0) {
System.out.println("Warning. Invalid endif... structure: '"+line+"' at "+filename+":"+lineNumber);
} else if (line.indexOf("//") == 0) {
line = line.substring(2).trim();
if (line.indexOf("JDBC40DOC") == 0) {
typeCode = FOUND_JDBC40DOC;
} else if (line.indexOf("JDBC40DOC") > 0) {
System.out.println("Warning. Invalid JDBC40DOC after // line '"+line+"' at "+filename+":"+lineNumber);
}
} else if (line.indexOf("JDBC40DOC") > 0) {
System.out.println("Warning. Invalid JDBC40DOC line '"+line+"' at "+filename+":"+lineNumber);
} else if (line.indexOf("/*") > 0) {
typeCode = FOUND_COMMENT;
} else if (line.indexOf("*/") > 0) {
typeCode = FOUND_COMMENT;
}
return typeCode;
}
private void createJdbc40File(String filename) throws BuildException {
int lineNumber = 0;
try
{
long start = System.currentTimeMillis();
File inputFile = new File(srcDir_+"/"+filename);
File outputFile = new File(destDir_+"/"+filename);
File outputParent = outputFile.getParentFile();
if (! outputParent.exists()) {
if (verbose_) {
System.out.println("Creating "+outputParent.getAbsolutePath()+" because it does not exist");
}
outputParent.mkdirs();
}
PrintWriter writer = new PrintWriter(new FileWriter(outputFile));
BufferedReader reader = new BufferedReader(new FileReader(inputFile));
int state = STATE_NONE;
int linetype = 0;
int stateChangeLineNumber = 0;
String line = reader.readLine();
while (line != null) {
lineNumber++;
linetype = getLineType(line,filename,lineNumber);
switch(state) {
case STATE_NONE:
switch (linetype) {
case FOUND_NONE:
case FOUND_COMMENT:
break;
case FOUND_IFDEF40:
state = STATE_IFDEF40;
stateChangeLineNumber = lineNumber;
line = "/* ifdef JDBC40 */";
break;
case FOUND_IFNDEF40:
state = STATE_IFNDEF40;
stateChangeLineNumber = lineNumber;
line = "/* ifndef JDBC40 ";
break;
case FOUND_JDBC40DOC:
line = removeJdbc40Doc(line);
break;
case FOUND_ENDIF:
/* Just ignore an extra endif, since */
/* it could belong to an ifdef we dont */
/* support */
break;
}
break;
case STATE_IFDEF40:
switch (linetype) {
case FOUND_NONE:
break;
case FOUND_IFDEF40:
case FOUND_IFNDEF40:
writer.close();
throw new Exception("FOUND INVALID IFDEF (currently processing IFDEF:"+stateChangeLineNumber+") '" + line
+ "' AT "+filename+":" + lineNumber);
case FOUND_ENDIF:
state = STATE_NONE;
stateChangeLineNumber = lineNumber;
line = "/* endif */ ";
break;
case FOUND_COMMENT:
System.out.println("WARNING: found comment in line '"+line+"' processing IFDEF:"+stateChangeLineNumber+") '" + line
+ "' AT "+filename+":" + lineNumber);
break;
case FOUND_JDBC40DOC:
line = removeJdbc40Doc(line);
break;
}
break;
case STATE_IFNDEF40:
switch (linetype) {
case FOUND_NONE:
break;
case FOUND_IFDEF40:
case FOUND_IFNDEF40:
writer.close();
throw new Exception("FOUND INVALID IFDEF (currently processing IFNDEF:"+stateChangeLineNumber+") '" + line
+ "' AT "+filename+":" + lineNumber);
case FOUND_ENDIF:
state = STATE_NONE;
stateChangeLineNumber = lineNumber;
line = " endif */ ";
break;
case FOUND_COMMENT:
System.out.println("WARNING: found comment in line '"+line+"' processing IFNDEF:"+stateChangeLineNumber+") '" + line
+ "' AT "+filename+":" + lineNumber);
break;
case FOUND_JDBC40DOC:
System.out.println("WARNING: found JDBC40DOC in line '"+line+"' processing IFNDEF:"+stateChangeLineNumber+") '" + line
+ "' AT "+filename+":" + lineNumber);
break;
}
break;
}
writer.println(line);
line = reader.readLine();
}
writer.close();
long end = System.currentTimeMillis();
if (verbose_) System.out.println("Processed. Time: "+(end-start)+" ms");
}
catch (java.io.CharConversionException e) {
System.out.println("CharConversionException processing "+filename+ " line : "+lineNumber);
e.printStackTrace();
Throwable cause = e.getCause();
while (cause != null ) {
System.out.println("----------caused by --------------------");
cause.printStackTrace();
cause = cause.getCause();
}
throw new BuildException(e);
}
catch (Exception e) {
System.out.println("Exception processing "+filename+ " line : "+lineNumber);
e.printStackTrace();
throw new BuildException(e);
}
}
private String removeJdbc40Doc(String line) {
int index = line.indexOf("JDBC40DOC");
if (index > 0) {
return line.substring(index+9);
}
System.out.println("WARNING: did not find JDBC40DOC when processing removeJdbc40Doc");
return line;
}
}