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/*   Copyright 2004 The Apache Software Foundation
 *
 *   Licensed under the Apache License, Version 2.0 (the "License");
 *   you may not use this file except in compliance with the License.
 *   You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *  limitations under the License.
 */

package org.apache.xmlbeans.impl.jam.internal;

import org.apache.xmlbeans.impl.jam.JamClassLoader;
import org.apache.xmlbeans.impl.jam.JamServiceParams;
import org.apache.xmlbeans.impl.jam.annotation.AnnotationProxy;
import org.apache.xmlbeans.impl.jam.annotation.DefaultAnnotationProxy;
import org.apache.xmlbeans.impl.jam.annotation.JavadocTagParser;
import org.apache.xmlbeans.impl.jam.annotation.WhitespaceDelimitedTagParser;
import org.apache.xmlbeans.impl.jam.internal.elements.ElementContext;
import org.apache.xmlbeans.impl.jam.provider.CompositeJamClassBuilder;
import org.apache.xmlbeans.impl.jam.provider.JamClassBuilder;
import org.apache.xmlbeans.impl.jam.provider.JamLogger;
import org.apache.xmlbeans.impl.jam.provider.JamServiceContext;
import org.apache.xmlbeans.impl.jam.provider.ResourcePath;
import org.apache.xmlbeans.impl.jam.visitor.CompositeMVisitor;
import org.apache.xmlbeans.impl.jam.visitor.MVisitor;
import org.apache.xmlbeans.impl.jam.visitor.PropertyInitializer;

import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.Set;

/**
 * Takes settings from the user (through JamServiceParams) and exposes
 * them to the implementation (through JamServiceContext).
 *
 * @author Patrick Calahan <email: pcal-at-bea-dot-com>
 */
public class JamServiceContextImpl extends JamLoggerImpl implements JamServiceContext,
  JamServiceParams, ElementContext
{

  // ========================================================================
  // Constants

  private static final char INNER_CLASS_SEPARATOR = '$';

  // ========================================================================
  // Variables

  private boolean m14WarningsEnabled = false;
  private Properties mProperties = null;
  private Map mSourceRoot2Scanner = null;
  private Map mClassRoot2Scanner = null;


  private List mClasspath = null;
  private List mSourcepath = null;
  private List mToolClasspath = null;

  private List mIncludeClasses = null;
  private List mExcludeClasses = null;


  private boolean mUseSystemClasspath = true;


  private JavadocTagParser mTagParser = null;
  private MVisitor mCommentInitializer = null;
  private MVisitor mPropertyInitializer = new PropertyInitializer();
  private List mOtherInitializers = null;
  private List mUnstructuredSourceFiles = null;
  private List mClassLoaders = null;
  private List mBaseBuilders = null;

  private JamClassLoader mLoader = null;

  // ========================================================================
  // REVIEW

  public void setClassLoader(JamClassLoader loader) {
    mLoader = loader;
  }

  public JamClassBuilder getBaseBuilder() {
    if (mBaseBuilders == null || mBaseBuilders.size() == 0) {
      return null;
    }
    if (mBaseBuilders.size() == 1) {
      return (JamClassBuilder)mBaseBuilders.get(0);
    }
    JamClassBuilder[] comp = new JamClassBuilder[mBaseBuilders.size()];
    mBaseBuilders.toArray(comp);
    return new CompositeJamClassBuilder(comp);
  }

  public JavadocTagParser getTagParser() {
    if (mTagParser == null) {
      mTagParser = new WhitespaceDelimitedTagParser();
      mTagParser.init(this);
    }
    return mTagParser;
  }


  // ========================================================================
  // Constructors

  public JamServiceContextImpl() {}

  // ========================================================================
  // Public methods - used by BaseJProvider

  /**
   * Returns an array containing the qualified names of the classes which
   * are in the Service class set.
   */
  public String[] getAllClassnames() throws IOException {
    Set all = new HashSet();
    if (mIncludeClasses != null) all.addAll(mIncludeClasses);
    for(Iterator i = getAllDirectoryScanners(); i.hasNext(); ) {
      DirectoryScanner ds = (DirectoryScanner)i.next();
      String[] files = ds.getIncludedFiles();
      for(int j=0; j