langtools/src/share/classes/com/sun/tools/sjavac/CompileProperties.java - platform/libcore - Git at Google

 /*
  * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.  Oracle designates this
  * particular file as subject to the "Classpath" exception as provided
  * by Oracle in the LICENSE file that accompanied this code.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  */

 package com.sun.tools.sjavac;

 import java.io.*;
 import java.net.URI;
 import java.text.MessageFormat;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Properties;
 import java.util.Set;
 import java.util.HashSet;
 import java.util.Map;

 /**
  * Compile properties transform a properties file into a Java source file.
  * Java has built in support for reading properties from either a text file
  * in the source or a compiled java source file.
  *
  * <p><b>This is NOT part of any supported API.
  * If you write code that depends on this, you do so at your own
  * risk.  This code and its internal interfaces are subject to change
  * or deletion without notice.</b></p>
  */
 public class CompileProperties implements Transformer
 {
     // Any extra information passed from the command line, for example if:
     // -tr .proppp=com.sun.tools.javac.smart.CompileProperties,sun.util.resources.LocaleNamesBundle
     // then extra will be "sun.util.resources.LocaleNamesBundle"
     String extra;

     public void setExtra(String e) {
         extra = e;
     }

     public void setExtra(String[] a) {
     }

     public boolean transform(Map<String,Set<URI>> pkgSrcs,
                              Set<URI>             visibleSrcs,
                              Map<URI,Set<String>> visibleClasses,
                              Map<String,Set<String>> oldPackageDependents,
                              URI destRoot,
                              Map<String,Set<URI>>    packageArtifacts,
                              Map<String,Set<String>> packageDependencies,
                              Map<String,String>      packagePublicApis,
                              int debugLevel,
                              boolean incremental,
                              int numCores,
                              PrintStream out,
                              PrintStream err) {
         boolean rc = true;
         for (String pkgName : pkgSrcs.keySet()) {
             String pkgNameF = Util.toFileSystemPath(pkgName);
             for (URI u : pkgSrcs.get(pkgName)) {
                 File src = new File(u);
                 boolean r = compile(pkgName, pkgNameF, src, new File(destRoot), debugLevel,
                                     packageArtifacts);
                 if (r == false) {
                     rc = false;
                 }
             }
         }
         return rc;
     }

     boolean compile(String pkgName, String pkgNameF, File src, File destRoot, int debugLevel,
                     Map<String,Set<URI>> packageArtifacts)
     {
         String superClass = "java.util.ListResourceBundle";

         if (extra != null) {
             superClass = extra;
         }
         // Load the properties file.
         Properties p = new Properties();
         try {
             p.load(new FileInputStream(src));
         } catch (IOException e) {
             Log.error("Error reading file "+src.getPath());
             return false;
         }

         // Calculate the name of the Java source file to be generated.
         int dp = src.getName().lastIndexOf(".");
         String classname = src.getName().substring(0,dp);

         // Sort the properties in increasing key order.
         List<String> sortedKeys = new ArrayList<>();
         for (Object key : p.keySet()) {
             sortedKeys.add((String)key);
         }
         Collections.sort(sortedKeys);
         Iterator<String> keys = sortedKeys.iterator();

         // Collect the properties into a string buffer.
         StringBuilder data = new StringBuilder();
         while (keys.hasNext()) {
             String key = keys.next();
             data.append("            { \"" + escape(key) + "\", \"" +
                         escape((String)p.get(key)) + "\" },\n");
         }

         // Create dest file name. It is derived from the properties file name.
         String destFilename = destRoot.getPath()+File.separator+pkgNameF+File.separator+classname+".java";
         File dest = new File(destFilename);

         // Make sure the dest directories exist.
         if (!dest.getParentFile().isDirectory()) {
             if (!dest.getParentFile().mkdirs()) {
                 Log.error("Could not create the directory "+dest.getParentFile().getPath());
                 return false;
             }
         }

         Set<URI> as = packageArtifacts.get(pkgName);
         if (as == null) {
             as = new HashSet<>();
             packageArtifacts.put(pkgName, as);
         }
         as.add(dest.toURI());

         if (dest.exists() && dest.lastModified() > src.lastModified()) {
             // A generated file exists, and its timestamp is newer than the source.
             // Assume that we do not need to regenerate the dest file!
             // Thus we are done.
             return true;
         }

         String packageString = "package " + pkgNameF.replace(File.separatorChar,'.') + ";\n\n";

         Log.info("Compiling property file "+pkgNameF+File.separator+src.getName());
         try (Writer writer = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(dest)))) {
             MessageFormat format = new MessageFormat(FORMAT);
             writer.write(format.format(new Object[] { packageString, classname, superClass, data }));
         } catch ( IOException e ) {
             Log.error("Could not write file "+dest.getPath());
             return false;
         }
         return true;
     }

     private static final String FORMAT =
             "{0}" +
             "public final class {1} extends {2} '{'\n" +
             "    protected final Object[][] getContents() '{'\n" +
             "        return new Object[][] '{'\n" +
             "{3}" +
             "        };\n" +
             "    }\n" +
             "}\n";

     public static String escape(String theString) {
         int len = theString.length();
         StringBuilder outBuffer = new StringBuilder(len*2);

         for(int x=0; x<len; x++) {
             char aChar = theString.charAt(x);
             switch(aChar) {
                 case '\\':outBuffer.append('\\'); outBuffer.append('\\');
                 break;
                 case '\t':outBuffer.append('\\'); outBuffer.append('t');
                 break;
                 case '\n':outBuffer.append('\\'); outBuffer.append('n');
                 break;
                 case '\r':outBuffer.append('\\'); outBuffer.append('r');
                 break;
                 case '\f':outBuffer.append('\\'); outBuffer.append('f');
                 break;
                 default:
                     if ((aChar < 0x0020) || (aChar > 0x007e)) {
                         outBuffer.append('\\');
                         outBuffer.append('u');
                         outBuffer.append(toHex((aChar >> 12) & 0xF));
                         outBuffer.append(toHex((aChar >>  8) & 0xF));
                         outBuffer.append(toHex((aChar >>  4) & 0xF));
                         outBuffer.append(toHex( aChar        & 0xF));
                     } else {
                         if (aChar == '"') {
                             outBuffer.append('\\');
                         }
                         outBuffer.append(aChar);
                     }
             }
         }
         return outBuffer.toString();
     }

     private static char toHex(int nibble) {
         return hexDigit[(nibble & 0xF)];
     }

     private static final char[] hexDigit = {
         '0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'
     };
 }
	/*
	* Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	*
	* This code is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License version 2 only, as
	* published by the Free Software Foundation. Oracle designates this
	* particular file as subject to the "Classpath" exception as provided
	* by Oracle in the LICENSE file that accompanied this code.
	*
	* This code is distributed in the hope that it will be useful, but WITHOUT
	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	* version 2 for more details (a copy is included in the LICENSE file that
	* accompanied this code).
	*
	* You should have received a copy of the GNU General Public License version
	* 2 along with this work; if not, write to the Free Software Foundation,
	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
	*
	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
	* or visit www.oracle.com if you need additional information or have any
	* questions.
	*/

	package com.sun.tools.sjavac;

	import java.io.*;
	import java.net.URI;
	import java.text.MessageFormat;
	import java.util.ArrayList;
	import java.util.Collections;
	import java.util.Iterator;
	import java.util.List;
	import java.util.Properties;
	import java.util.Set;
	import java.util.HashSet;
	import java.util.Map;

	/**
	* Compile properties transform a properties file into a Java source file.
	* Java has built in support for reading properties from either a text file
	* in the source or a compiled java source file.
	*
	* <p><b>This is NOT part of any supported API.
	* If you write code that depends on this, you do so at your own
	* risk. This code and its internal interfaces are subject to change
	* or deletion without notice.</b></p>
	*/
	public class CompileProperties implements Transformer
	{
	// Any extra information passed from the command line, for example if:
	// -tr .proppp=com.sun.tools.javac.smart.CompileProperties,sun.util.resources.LocaleNamesBundle
	// then extra will be "sun.util.resources.LocaleNamesBundle"
	String extra;

	public void setExtra(String e) {
	extra = e;
	}

	public void setExtra(String[] a) {
	}

	public boolean transform(Map<String,Set<URI>> pkgSrcs,
	Set<URI> visibleSrcs,
	Map<URI,Set<String>> visibleClasses,
	Map<String,Set<String>> oldPackageDependents,
	URI destRoot,
	Map<String,Set<URI>> packageArtifacts,
	Map<String,Set<String>> packageDependencies,
	Map<String,String> packagePublicApis,
	int debugLevel,
	boolean incremental,
	int numCores,
	PrintStream out,
	PrintStream err) {
	boolean rc = true;
	for (String pkgName : pkgSrcs.keySet()) {
	String pkgNameF = Util.toFileSystemPath(pkgName);
	for (URI u : pkgSrcs.get(pkgName)) {
	File src = new File(u);
	boolean r = compile(pkgName, pkgNameF, src, new File(destRoot), debugLevel,
	packageArtifacts);
	if (r == false) {
	rc = false;
	}
	}
	}
	return rc;
	}

	boolean compile(String pkgName, String pkgNameF, File src, File destRoot, int debugLevel,
	Map<String,Set<URI>> packageArtifacts)
	{
	String superClass = "java.util.ListResourceBundle";

	if (extra != null) {
	superClass = extra;
	}
	// Load the properties file.
	Properties p = new Properties();
	try {
	p.load(new FileInputStream(src));
	} catch (IOException e) {
	Log.error("Error reading file "+src.getPath());
	return false;
	}

	// Calculate the name of the Java source file to be generated.
	int dp = src.getName().lastIndexOf(".");
	String classname = src.getName().substring(0,dp);

	// Sort the properties in increasing key order.
	List<String> sortedKeys = new ArrayList<>();
	for (Object key : p.keySet()) {
	sortedKeys.add((String)key);
	}
	Collections.sort(sortedKeys);
	Iterator<String> keys = sortedKeys.iterator();

	// Collect the properties into a string buffer.
	StringBuilder data = new StringBuilder();
	while (keys.hasNext()) {
	String key = keys.next();
	data.append(" { \"" + escape(key) + "\", \"" +
	escape((String)p.get(key)) + "\" },\n");
	}

	// Create dest file name. It is derived from the properties file name.
	String destFilename = destRoot.getPath()+File.separator+pkgNameF+File.separator+classname+".java";
	File dest = new File(destFilename);

	// Make sure the dest directories exist.
	if (!dest.getParentFile().isDirectory()) {
	if (!dest.getParentFile().mkdirs()) {
	Log.error("Could not create the directory "+dest.getParentFile().getPath());
	return false;
	}
	}

	Set<URI> as = packageArtifacts.get(pkgName);
	if (as == null) {
	as = new HashSet<>();
	packageArtifacts.put(pkgName, as);
	}
	as.add(dest.toURI());

	if (dest.exists() && dest.lastModified() > src.lastModified()) {
	// A generated file exists, and its timestamp is newer than the source.
	// Assume that we do not need to regenerate the dest file!
	// Thus we are done.
	return true;
	}

	String packageString = "package " + pkgNameF.replace(File.separatorChar,'.') + ";\n\n";

	Log.info("Compiling property file "+pkgNameF+File.separator+src.getName());
	try (Writer writer = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(dest)))) {
	MessageFormat format = new MessageFormat(FORMAT);
	writer.write(format.format(new Object[] { packageString, classname, superClass, data }));
	} catch ( IOException e ) {
	Log.error("Could not write file "+dest.getPath());
	return false;
	}
	return true;
	}

	private static final String FORMAT =
	"{0}" +
	"public final class {1} extends {2} '{'\n" +
	" protected final Object[][] getContents() '{'\n" +
	" return new Object[][] '{'\n" +
	"{3}" +
	" };\n" +
	" }\n" +
	"}\n";

	public static String escape(String theString) {
	int len = theString.length();
	StringBuilder outBuffer = new StringBuilder(len*2);

	for(int x=0; x<len; x++) {
	char aChar = theString.charAt(x);
	switch(aChar) {
	case '\\':outBuffer.append('\\'); outBuffer.append('\\');
	break;
	case '\t':outBuffer.append('\\'); outBuffer.append('t');
	break;
	case '\n':outBuffer.append('\\'); outBuffer.append('n');
	break;
	case '\r':outBuffer.append('\\'); outBuffer.append('r');
	break;
	case '\f':outBuffer.append('\\'); outBuffer.append('f');
	break;
	default:
	if ((aChar < 0x0020) \|\| (aChar > 0x007e)) {
	outBuffer.append('\\');
	outBuffer.append('u');
	outBuffer.append(toHex((aChar >> 12) & 0xF));
	outBuffer.append(toHex((aChar >> 8) & 0xF));
	outBuffer.append(toHex((aChar >> 4) & 0xF));
	outBuffer.append(toHex( aChar & 0xF));
	} else {
	if (aChar == '"') {
	outBuffer.append('\\');
	}
	outBuffer.append(aChar);
	}
	}
	}
	return outBuffer.toString();
	}

	private static char toHex(int nibble) {
	return hexDigit[(nibble & 0xF)];
	}

	private static final char[] hexDigit = {
	'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'
	};
	}