v2/src/binding/org/apache/xmlbeans/impl/binding/compile/Both2BindTask.java

/*   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.binding.compile;

import org.apache.tools.ant.types.Path;
import org.apache.tools.ant.types.Reference;
import org.apache.tools.ant.types.FileSet;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.DirectoryScanner;
import org.apache.xmlbeans.XmlException;
import org.apache.xmlbeans.impl.jam.JClass;
import org.apache.xmlbeans.impl.jam.JamServiceFactory;
import org.apache.xmlbeans.impl.jam.JamServiceParams;
import org.w3.x2001.xmlSchema.SchemaDocument;

import java.io.File;
import java.io.IOException;
import java.util.List;
import java.util.ArrayList;

public class Both2BindTask extends BindingCompilerTask {

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

  private Both2Bind mCompiler;
  private Path mSrc = null;
  private Path mClasspath = null;
  private List mXsdFiles = null;
  private List mJavaFiles = null;
  private List mSchemaFilesets = new ArrayList();
  private File mSchema = null;

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

  public Both2BindTask() {
    // create the BindingCompiler object that we're going to populate and
    // return in createCompiler()
    mCompiler = new Both2Bind();
  }

  // =========================================================================
  // BindingCompilerTask implementation

  protected BindingCompiler getCompilerToExecute() throws BuildException {
    // validate some parameters
    if (mSrc == null || mSrc.size() == 0) {
      throw new BuildException("srcdir attribute must be set!",
              getLocation());
    }
    // scan source directories and dest directory to build up
    startScan();
    String[] list = mSrc.list();
    for (int i = 0; i < list.length; i++) {
      File srcDir = getProject().resolveFile(list[i]);
      if (!srcDir.exists()) {
        throw new BuildException("srcdir \""
                + srcDir.getPath()
                + "\" does not exist!", getLocation());
      }
      DirectoryScanner ds = this.getDirectoryScanner(srcDir);
      String[] files = ds.getIncludedFiles();
      scanJavaDir(srcDir, files);
    }
    // now scan XSD files
    // single file
    if (mSchema != null) {
      if (!mSchema.exists())
        throw new BuildException("schema " + mSchema + " does not exist!", getLocation());
      mXsdFiles.add(mSchema);
    }

    for (int i = 0; i < mSchemaFilesets.size(); i++) {
      scanSchemaFileset((FileSet) mSchemaFilesets.get(i));
    }
    File[] xsdFiles = (File[]) mXsdFiles.toArray(new File[mXsdFiles.size()]);
    File[] javaFiles = (File[]) mJavaFiles.toArray(new File[mJavaFiles.size()]);

    // bind
    try {
      //FIXME when we allow them to set up a base tylar, we need to take
      //those loaders into account here
      SchemaDocument[] xsds = new SchemaDocument[xsdFiles.length];
      for(int i=0; i<xsds.length; i++) {
        xsds[i] = parseSchemaFile(xsdFiles[i]);
        mCompiler.includeSchema(xsds[i],xsdFiles[i].getName());//REVIEW is just the name ok?  what about conflicts?
      }
      mCompiler.setSchemaTypesToMatch(createSchemaTypeSystem(xsds));
      mCompiler.setJavaTypesToMatch(loadJClasses(javaFiles));
    } catch (IOException e) {
      log(e.getMessage());
      throw new BuildException(e);
    } catch (XmlException e) {
      log(e.getMessage());
      throw new BuildException(e);
    }
    return mCompiler;
  }

  // =========================================================================
  // Task attributes

  /**
   * Set the source directories to find the source Java files.
   */
  public void setSrcdir(Path srcDir) {
    if (mSrc == null) {
      mSrc = srcDir;
    } else {
      mSrc.append(srcDir);
    }
  }

  /**
   * Sets a single schema.
   */
  public void setSchema(File file) {
    mSchema = file;
  }

  /**
   * Adds a fileset for source XSD files
   */
  public void addSchema(FileSet fileSet) {
    mSchemaFilesets.add(fileSet);
  }

  /**
   * Sets the typematcher to use.  Must be a fully-qualified
   * class name for a class that implements the TypeMatcher interface.
   */
  public void setTypeMatcher(String typeMatcherClassName) {
    if (typeMatcherClassName != null) {
      try {
        Class mclass = Class.forName(typeMatcherClassName);
        Object matcher = mclass.newInstance();
        if (!(matcher instanceof TypeMatcher)) {
          throw new BuildException(typeMatcherClassName+" does not implement "+
                  TypeMatcher.class.getName());
        }
        mCompiler.setTypeMatcher((TypeMatcher)matcher);
        log("both2Bind using matcher class " + typeMatcherClassName);
      } catch(ClassNotFoundException cnfe){
        throw new BuildException(cnfe);
      } catch(InstantiationException ie) {
        throw new BuildException(ie);
      } catch(IllegalAccessException iae) {
        throw new BuildException(iae);
      }
    }
  }

  /**
   * Adds a path for source compilation.
   *
   * @return a nested src element.
   */
  public Path createSrc() {
    if (mSrc == null) {
      mSrc = new Path(getProject());
    }
    return mSrc.createPath();
  }

  public void setClasspath(Path path) {
    if (mClasspath == null) {
      mClasspath = path;
    } else {
      mClasspath.append(path);
    }
  }

  public void setClasspathRef(Reference r) {
    createClasspath().setRefid(r);
  }

  public Path createClasspath() {
    if (mClasspath == null) {
      mClasspath = new Path(getProject());
    }
    return mClasspath.createPath();
  }

  // =========================================================================
  // Task implementation

  protected void startScan() {
    mXsdFiles = new ArrayList();
    mJavaFiles = new ArrayList();
  }

  protected void scanJavaDir(File srcDir, String[] files) {
    for (int i = 0; i < files.length; i++) {
      if (files[i].endsWith(".java"))
        mJavaFiles.add(new File(srcDir, files[i]));
    }
  }

  protected void scanSchemaFileset(FileSet fs) {
    File fromDir = fs.getDir(getProject());
    DirectoryScanner ds = fs.getDirectoryScanner(getProject());
    String[] srcFiles = ds.getIncludedFiles();
    for (int i = 0; i < srcFiles.length; i++) {
      if (srcFiles[i].endsWith(".xsd"))
        mXsdFiles.add(new File(fromDir, srcFiles[i]));
    }

  }

  protected File[] namesToFiles(String[] names) {
    File[] result = new File[names.length];
    for (int i = 0; i < names.length; i++)
      result[i] = new File(names[i]);
    return result;
  }

  // ========================================================================
  // Private methods

  private JClass[] loadJClasses(final File[] javaFiles) throws IOException
  {
    JamServiceFactory factory = JamServiceFactory.getInstance();
    JamServiceParams params = factory.createServiceParams();
    for(int i=0; i<javaFiles.length; i++) {
      params.includeSourceFile(javaFiles[i]);
    }
    if (mClasspath != null) {
      String[] parts = mClasspath.list();
      for(int i=0; i<parts.length; i++) params.addClasspath(new File(parts[i]));
    }
    return factory.createService(params).getAllClasses();
  }

}