content: /*
   * Copyright (c) 2001, 2016, 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 openjdk.tools.sjavac;
  
  import java.io.BufferedWriter;
  import java.io.File;
  import java.io.FileInputStream;
  import java.io.FileOutputStream;
  import java.io.IOException;
  import java.io.OutputStreamWriter;
  import java.io.Writer;
  import java.net.URI;
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.HashSet;
  import java.util.List;
  import java.util.Map;
  import java.util.Properties;
  import java.util.Set;
  
  import openjdk.tools.sjavac.comp.CompilationService;
  import openjdk.tools.sjavac.options.Options;
  import openjdk.tools.sjavac.pubapi.PubApi;
  
  /**
   * The clean properties transform should not be necessary.
   * Eventually we will cleanup the property file sources in the OpenJDK instead.
   *
   *  <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>
   */
  public class CleanProperties implements Transformer {
      public void setExtra(String e) {
          // Any extra information is ignored for clean properties.
      }
  
      public void setExtra(Options a) {
          // Any extra information is ignored for clean properties.
      }
  
      public boolean transform(CompilationService sjavac,
                               Map<String,Set<URI>> pkgSrcs,
                               Set<URI>             visibleSrcs,
                               Map<String,Set<String>> oldPackageDependencies,
                               URI destRoot,
                               Map<String,Set<URI>>    packageArtifacts,
                               Map<String, Map<String, Set<String>>> packageDependencies,
                               Map<String, Map<String, Set<String>>> packageCpDependencies,
                               Map<String, PubApi> packagePublicApis,
                               Map<String, PubApi> dependencyPublicApis,
                               int debugLevel,
                               boolean incremental,
                               int numCores) {
          boolean rc = true;
          for (String pkgName : pkgSrcs.keySet()) {
              String pkgNameF = pkgName.replace('.',File.separatorChar);
              for (URI u : pkgSrcs.get(pkgName)) {
                  File src = new File(u);
                  boolean r = clean(pkgName, pkgNameF, src, new File(destRoot), debugLevel,
                                    packageArtifacts);
                  if (r == false) {
                      rc = false;
                  }
              }
          }
          return rc;
      }
  
      boolean clean(String pkgName,
                    String pkgNameF,
                    File src,
                    File destRoot,
                    int debugLevel,
                    Map<String,Set<URI>> packageArtifacts) {
          // 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;
          }
  
          // Sort the properties in increasing key order.
          List<String> sortedKeys = new ArrayList<>();
          for (Object key : p.keySet()) {
              sortedKeys.add((String)key);
          }
          Collections.sort(sortedKeys);
  
          // Collect the properties into a string buffer.
          StringBuilder data = new StringBuilder();
          for (String key : sortedKeys) {
              data.append(CompileProperties.escape(key))
                  .append(":")
                  .append(CompileProperties.escape((String) p.get(key)))
                  .append("\n");
          }
  
          String destFilename = destRoot.getPath()+File.separator+pkgNameF+File.separator+src.getName();
          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 cleaned property file exists, and its timestamp is newer than the source.
              // Assume that we do not need to clean!
              // Thus we are done.
              return true;
          }
  
          Log.info("Cleaning property file "+pkgNameF+File.separator+src.getName());
          try (Writer writer = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(dest)))) {
              writer.write(data.toString());
          } catch ( IOException e ) {
              Log.error("Could not write file "+dest.getPath());
              return false;
          }
          return true;
      }
  }
  