jdk8-mips64-public/corba: src/share/classes/sun/rmi/rmic/iiop/Generator.java@7ef37b2cdcad (annotated)

src/share/classes/sun/rmi/rmic/iiop/Generator.java@7ef37b2cdcad (annotated)

src/share/classes/sun/rmi/rmic/iiop/Generator.java

Wed, 27 Apr 2016 01:21:28 +0800

author: aoqi
date: Wed, 27 Apr 2016 01:21:28 +0800
changeset 0: 7ef37b2cdcad
child 748: 6845b95cba6b
permissions: -rw-r--r--

Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/corba/
changeset: 765:f46df0af2ca8
tag: jdk8u25-b17

 /*
  * Copyright (c) 1998, 2007, 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.
  */
 /*
  * Licensed Materials - Property of IBM
  * RMI-IIOP v1.0
  * Copyright IBM Corp. 1998 1999  All Rights Reserved
  *
  */
 package sun.rmi.rmic.iiop;
 import java.io.File;
 import java.io.FileOutputStream;
 import java.io.OutputStreamWriter;
 import java.io.IOException;
 import sun.tools.java.Identifier;
 import sun.tools.java.ClassPath;
 import sun.tools.java.ClassFile;
 import sun.tools.java.ClassNotFound;
 import sun.tools.java.ClassDefinition;
 import sun.tools.java.ClassDeclaration;
 import sun.rmi.rmic.IndentingWriter;
 import sun.rmi.rmic.Main;
 import sun.rmi.rmic.iiop.Util;
 import java.util.HashSet;
 /**
  * Generator provides a small framework from which IIOP-specific
  * generators can inherit.  Common logic is implemented here which uses
  * both abstract methods as well as concrete methods which subclasses may
  * want to override. The following methods must be present in any subclass:
  * <pre>
  *      Default constructor
  *              CompoundType getTopType(BatchEnvironment env, ClassDefinition cdef);
  *      int parseArgs(String argv[], int currentIndex);
  *      boolean requireNewInstance();
  *              OutputType[] getOutputTypesFor(CompoundType topType,
  *                                     HashSet alreadyChecked);
  *              String getFileNameExtensionFor(OutputType outputType);
  *              void writeOutputFor (   OutputType outputType,
  *                              HashSet alreadyChecked,
  *                                                              IndentingWriter writer) throws IOException;
  * </pre>
  * @author      Bryan Atsatt
  */
 public abstract class Generator implements      sun.rmi.rmic.Generator,
                                                 sun.rmi.rmic.iiop.Constants {
     protected boolean alwaysGenerate = false;
     protected BatchEnvironment env = null;
     protected ContextStack contextStack = null;
     private boolean trace = false;
     protected boolean idl = false;
     /**
      * Examine and consume command line arguments.
      * @param argv The command line arguments. Ignore null
      * and unknown arguments. Set each consumed argument to null.
      * @param error Report any errors using the main.error() methods.
      * @return true if no errors, false otherwise.
      */
     public boolean parseArgs(String argv[], Main main) {
         for (int i = 0; i < argv.length; i++) {
             if (argv[i] != null) {
                 if (argv[i].equalsIgnoreCase("-always") ||
                     argv[i].equalsIgnoreCase("-alwaysGenerate")) {
                     alwaysGenerate = true;
                     argv[i] = null;
                 } else if (argv[i].equalsIgnoreCase("-xtrace")) {
                     trace = true;
                     argv[i] = null;
                 }
             }
         }
         return true;
     }
     /**
      * Return true if non-conforming types should be parsed.
      * @param stack The context stack.
      */
     protected abstract boolean parseNonConforming(ContextStack stack);
     /**
      * Create and return a top-level type.
      * @param cdef The top-level class definition.
      * @param stack The context stack.
      * @return The compound type or null if is non-conforming.
      */
     protected abstract CompoundType getTopType(ClassDefinition cdef, ContextStack stack);
     /**
      * Return an array containing all the file names and types that need to be
      * generated for the given top-level type.  The file names must NOT have an
      * extension (e.g. ".java").
      * @param topType The type returned by getTopType().
      * @param alreadyChecked A set of Types which have already been checked.
      *  Intended to be passed to Type.collectMatching(filter,alreadyChecked).
      */
     protected abstract OutputType[] getOutputTypesFor(CompoundType topType,
                                                       HashSet alreadyChecked);
     /**
      * Return the file name extension for the given file name (e.g. ".java").
      * All files generated with the ".java" extension will be compiled. To
      * change this behavior for ".java" files, override the compileJavaSourceFile
      * method to return false.
      * @param outputType One of the items returned by getOutputTypesFor(...)
      */
     protected abstract String getFileNameExtensionFor(OutputType outputType);
     /**
      * Write the output for the given OutputFileName into the output stream.
      * @param name One of the items returned by getOutputTypesFor(...)
      * @param alreadyChecked A set of Types which have already been checked.
      *  Intended to be passed to Type.collectMatching(filter,alreadyChecked).
      * @param writer The output stream.
      */
     protected abstract void writeOutputFor(OutputType outputType,
                                                 HashSet alreadyChecked,
                                                 IndentingWriter writer) throws IOException;
     /**
      * Return true if a new instance should be created for each
      * class on the command line. Subclasses which return true
      * should override newInstance() to return an appropriately
      * constructed instance.
      */
     protected abstract boolean requireNewInstance();
     /**
      * Return true if the specified file needs generation.
      */
     public boolean requiresGeneration (File target, Type theType) {
         boolean result = alwaysGenerate;
         if (!result) {
             // Get a ClassFile instance for base source or class
             // file.  We use ClassFile so that if the base is in
             // a zip file, we can still get at it's mod time...
             ClassFile baseFile;
             ClassPath path = env.getClassPath();
             String className = theType.getQualifiedName().replace('.',File.separatorChar);
             // First try the source file...
             baseFile = path.getFile(className + ".source");
             if (baseFile == null) {
                 // Then try class file...
                 baseFile = path.getFile(className + ".class");
             }
             // Do we have a baseFile?
             if (baseFile != null) {
                 // Yes, grab baseFile's mod time...
                 long baseFileMod = baseFile.lastModified();
                 // Get a File instance for the target. If it is a source
                 // file, create a class file instead since the source file
                 // will frequently be deleted...
                 String targetName = IDLNames.replace(target.getName(),".java",".class");
                 String parentPath = target.getParent();
                 File targetFile = new File(parentPath,targetName);
                 // Does the target file exist?
                 if (targetFile.exists()) {
                     // Yes, so grab it's mod time...
                     long targetFileMod = targetFile.lastModified();
                     // Set result...
                     result = targetFileMod < baseFileMod;
                 } else {
                     // No, so we must generate...
                     result = true;
                 }
             } else {
                 // No, so we must generate...
                 result = true;
             }
         }
         return result;
     }
     /**
      * Create and return a new instance of self. Subclasses
      * which need to do something other than default construction
      * must override this method.
      */
     protected Generator newInstance() {
         Generator result = null;
         try {
             result = (Generator) getClass().newInstance();
         }
         catch (Exception e){} // Should ALWAYS work!
         return result;
     }
     /**
      * Default constructor for subclasses to use.
      */
     protected Generator() {
     }
     /**
      * Generate output. Any source files created which need compilation should
      * be added to the compiler environment using the addGeneratedFile(File)
      * method.
      *
      * @param env       The compiler environment
      * @param cdef      The definition for the implementation class or interface from
      *              which to generate output
      * @param destDir   The directory for the root of the package hierarchy
      *                          for generated files. May be null.
      */
     public void generate(sun.rmi.rmic.BatchEnvironment env, ClassDefinition cdef, File destDir) {
         this.env = (BatchEnvironment) env;
         contextStack = new ContextStack(this.env);
         contextStack.setTrace(trace);
         // Make sure the environment knows whether or not to parse
         // non-conforming types. This will clear out any previously
         // parsed types if necessary...
         this.env.setParseNonConforming(parseNonConforming(contextStack));
         // Get our top level type...
         CompoundType topType = getTopType(cdef,contextStack);
         if (topType != null) {
             Generator generator = this;
             // Do we need to make a new instance?
             if (requireNewInstance()) {
                                 // Yes, so make one.  'this' instance is the one instantiated by Main
                                 // and which knows any needed command line args...
                 generator = newInstance();
             }
             // Now generate all output files...
             generator.generateOutputFiles(topType, this.env, destDir);
         }
     }
     /**
      * Create and return a new instance of self. Subclasses
      * which need to do something other than default construction
      * must override this method.
      */
     protected void generateOutputFiles (CompoundType topType,
                                         BatchEnvironment env,
                                         File destDir) {
         // Grab the 'alreadyChecked' HashSet from the environment...
         HashSet alreadyChecked = env.alreadyChecked;
         // Ask subclass for a list of output types...
         OutputType[] types = getOutputTypesFor(topType,alreadyChecked);
         // Process each file...
         for (int i = 0; i < types.length; i++) {
             OutputType current = types[i];
             String className = current.getName();
             File file = getFileFor(current,destDir);
             boolean sourceFile = false;
             // Do we need to generate this file?
             if (requiresGeneration(file,current.getType())) {
                 // Yes. If java source file, add to environment so will be compiled...
                 if (file.getName().endsWith(".java")) {
                     sourceFile = compileJavaSourceFile(current);
                                 // Are we supposeded to compile this one?
                     if (sourceFile) {
                         env.addGeneratedFile(file);
                     }
                 }
                 // Now create an output stream and ask subclass to fill it up...
                 try {
                    IndentingWriter out = new IndentingWriter(
                                                               new OutputStreamWriter(new FileOutputStream(file)),INDENT_STEP,TAB_SIZE);
                     long startTime = 0;
                     if (env.verbose()) {
                         startTime = System.currentTimeMillis();
                     }
                     writeOutputFor(types[i],alreadyChecked,out);
                     out.close();
                     if (env.verbose()) {
                         long duration = System.currentTimeMillis() - startTime;
                         env.output(Main.getText("rmic.generated", file.getPath(), Long.toString(duration)));
                     }
                     if (sourceFile) {
                         env.parseFile(new ClassFile(file));
                     }
                 } catch (IOException e) {
                     env.error(0, "cant.write", file.toString());
                     return;
                 }
             } else {
                 // No, say so if we need to...
                 if (env.verbose()) {
                     env.output(Main.getText("rmic.previously.generated", file.getPath()));
                 }
             }
         }
     }
     /**
      * Return the File object that should be used as the output file
      * for the given OutputType.
      * @param outputType The type to create a file for.
      * @param destinationDir The directory to use as the root of the
      * package heirarchy.  May be null, in which case the current
      * classpath is searched to find the directory in which to create
      * the output file.  If that search fails (most likely because the
      * package directory lives in a zip or jar file rather than the
      * file system), the current user directory is used.
      */
     protected File getFileFor(OutputType outputType, File destinationDir) {
         // Calling this method does some crucial initialization
         // in a subclass implementation. Don't skip it.
         Identifier id = getOutputId(outputType);
         File packageDir = null;
         if(idl){
             packageDir = Util.getOutputDirectoryForIDL(id,destinationDir,env);
         } else {
             packageDir = Util.getOutputDirectoryForStub(id,destinationDir,env);
         }
         String classFileName = outputType.getName() + getFileNameExtensionFor(outputType);
         return new File(packageDir, classFileName);
     }
     /**
      * Return an identifier to use for output.
      * @param outputType the type for which output is to be generated.
      * @return the new identifier. This implementation returns the input parameter.
      */
     protected Identifier getOutputId (OutputType outputType) {
         return outputType.getType().getIdentifier();
     }
     /**
      * Return true if the given file should be compiled.
      * @param outputType One of the items returned by getOutputTypesFor(...) for
      *   which getFileNameExtensionFor(OutputType) returned ".java".
      */
     protected boolean compileJavaSourceFile (OutputType outputType) {
         return true;
     }
     //_____________________________________________________________________
     // OutputType is a simple wrapper for a name and a Type
     //_____________________________________________________________________
     public class OutputType {
         private String name;
         private Type type;
         public OutputType (String name, Type type) {
             this.name = name;
             this.type = type;
         }
         public String getName() {
             return name;
         }
         public Type getType() {
             return type;
         }
     }
 }

Mercurial > jdk8-mips64-public > corba / annotate

src/share/classes/sun/rmi/rmic/iiop/Generator.java@7ef37b2cdcad (annotated)

src/share/classes/sun/rmi/rmic/iiop/Generator.java