org.eclipse.jdt.core/model/org/eclipse/jdt/internal/core/PackageFragment.java - jdt/eclipse.jdt.core - Git at Google

 package org.eclipse.jdt.internal.core;

 /*
  * (c) Copyright IBM Corp. 2000, 2001.
  * All Rights Reserved.
  */
 import org.eclipse.core.resources.*;
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IProgressMonitor;

 import org.eclipse.jdt.core.*;

 import java.util.*;

 /**
  * @see IPackageFragment
  */
 public class PackageFragment extends Openable implements IPackageFragment {
 	/**
 	 * Constant empty list of class files
 	 */
 	protected static IClassFile[] fgEmptyClassFileList= new IClassFile[] {};
 	/**
 	 * Constant empty list of compilation units
 	 */
 	protected static ICompilationUnit[] fgEmptyCompilationUnitList= new ICompilationUnit[] {};
 /**
  * Constructs a handle for a package fragment
  *
  * @see IPackageFragment
  */
 protected PackageFragment(IPackageFragmentRoot root, String name) {
 	super(PACKAGE_FRAGMENT, root, name);
 }
 /**
  * Compute the children of this package fragment.
  *
  * <p>Package fragments which are folders recognize files based on the
  * type of the fragment
  * <p>Package fragments which are in a jar only recognize .class files (
  * @see JarPackageFragment).
  */
 protected boolean computeChildren(OpenableElementInfo info, IResource resource) throws JavaModelException {
 	Vector vChildren = new Vector();
 	int kind = getKind();
 	String extType;
 	if (kind == IPackageFragmentRoot.K_SOURCE) {
 		extType = "java"; //$NON-NLS-1$
 	} else {
 		extType = "class"; //$NON-NLS-1$
 	}
 	try {
 		IResource[] members = ((IContainer) resource).members();
 		for (int i = 0, max = members.length; i < max; i++) {
 			IResource child = members[i];
 			if (child.getType() != IResource.FOLDER) {
 				String extension = child.getProjectRelativePath().getFileExtension();
 				if (extension != null) {
 					if (extension.equalsIgnoreCase(extType)) {
 						IJavaElement childElement;
 						if (kind == IPackageFragmentRoot.K_SOURCE) {
 							childElement = getCompilationUnit(child.getName());
 						} else {
 							childElement = getClassFile(child.getName());
 						}
 						vChildren.addElement(childElement);
 					}
 				}
 			}
 		}
 	} catch (CoreException e) {
 		throw new JavaModelException(e);
 	}
 	vChildren.trimToSize();
 	IJavaElement[] children = new IJavaElement[vChildren.size()];
 	vChildren.copyInto(children);
 	info.setChildren(children);
 	return true;
 }
 /**
  * Returns true if this fragment contains at least one java resource.
  * Returns false otherwise.
  */
 public boolean containsJavaResources() throws JavaModelException {
 	return ((PackageFragmentInfo) getElementInfo()).containsJavaResources();
 }
 /**
  * @see ISourceManipulation
  */
 public void copy(IJavaElement container, IJavaElement sibling, String rename, boolean force, IProgressMonitor monitor) throws JavaModelException {
 	if (container == null) {
 		throw new IllegalArgumentException(Util.bind("operation.nullContainer")); //$NON-NLS-1$
 	}
 	IJavaElement[] elements= new IJavaElement[] {this};
 	IJavaElement[] containers= new IJavaElement[] {container};
 	IJavaElement[] siblings= null;
 	if (sibling != null) {
 		siblings= new IJavaElement[] {sibling};
 	}
 	String[] renamings= null;
 	if (rename != null) {
 		renamings= new String[] {rename};
 	}
 	getJavaModel().copy(elements, containers, siblings, renamings, force, monitor);
 }
 /**
  * @see IPackageFragment
  */
 public ICompilationUnit createCompilationUnit(String name, String contents, boolean force, IProgressMonitor monitor) throws JavaModelException {
 	CreateCompilationUnitOperation op= new CreateCompilationUnitOperation(this, name, contents, force);
 	runOperation(op, monitor);
 	return getCompilationUnit(name);
 }
 /**
  * @see JavaElement
  */
 protected OpenableElementInfo createElementInfo() {
 	return new PackageFragmentInfo();
 }
 /**
  * @see ISourceManipulation
  */
 public void delete(boolean force, IProgressMonitor monitor) throws JavaModelException {
 	IJavaElement[] elements = new IJavaElement[] {this};
 	getJavaModel().delete(elements, force, monitor);
 }
 /**
  * @see Openable
  */
 protected boolean generateInfos(OpenableElementInfo info, IProgressMonitor pm, Hashtable newElements, IResource underlyingResource) throws JavaModelException {
 	return computeChildren(info, underlyingResource);
 }
 /**
  * @see IPackageFragment
  */
 public IClassFile getClassFile(String name) {
 	return new ClassFile(this, name);
 }
 /**
  * Returns a the collection of class files in this - a folder package fragment which has a root
  * that has its kind set to <code>IPackageFragmentRoot.K_Source</code> does not
  * recognize class files.
  *
  * @see IPackageFragment
  * @see JarPackageFragment
  */
 public IClassFile[] getClassFiles() throws JavaModelException {
 	if (getKind() == IPackageFragmentRoot.K_SOURCE) {
 		return fgEmptyClassFileList;
 	}

 	Vector v= getChildrenOfType(CLASS_FILE);
 	IClassFile[] array= new IClassFile[v.size()];
 	v.copyInto(array);
 	return array;
 }
 /**
  * @see IPackageFragment
  */
 public ICompilationUnit getCompilationUnit(String name) {
 	return new CompilationUnit(this, name);
 }
 /**
  * @see IPackageFragment
  */
 public ICompilationUnit[] getCompilationUnits() throws JavaModelException {
 	if (getKind() == IPackageFragmentRoot.K_BINARY) {
 		return fgEmptyCompilationUnitList;
 	}

 	Vector v= getChildrenOfType(COMPILATION_UNIT);
 	ICompilationUnit[] array= new ICompilationUnit[v.size()];
 	v.copyInto(array);
 	return array;
 }
 /**
  * @see JavaElement#getHandleMemento()
  */
 protected char getHandleMementoDelimiter() {
 	return JavaElement.JEM_PACKAGEFRAGMENT;
 }
 /**
  * @see IPackageFragment
  */
 public int getKind() throws JavaModelException {
 	return ((IPackageFragmentRoot)getParent()).getKind();
 }
 /**
  * Returns an array of non-java resources contained in the receiver.
  */
 public Object[] getNonJavaResources() throws JavaModelException {
 	if (this.isDefaultPackage()) {
 		// We don't want to show non java resources of the default package (see PR #1G58NB8)
 		return JavaElementInfo.NO_NON_JAVA_RESOURCES;
 	} else {
 		return ((PackageFragmentInfo) getElementInfo()).getNonJavaResources(getUnderlyingResource());
 	}
 }
 /**
  * @see IJavaElement
  */
 public IResource getUnderlyingResource() throws JavaModelException {
 	IResource rootResource = fParent.getUnderlyingResource();
 	if (rootResource == null) {
 		//jar package fragment root that has no associated resource
 		return null;
 	}
 	// the underlying resource may be a folder or a project (in the case that the project folder
 	// is atually the package fragment root)
 	if (rootResource.getType() == IResource.FOLDER || rootResource.getType() == IResource.PROJECT) {
 		IContainer folder = (IContainer) rootResource;
 		String[] segs = Signature.getSimpleNames(fName);
 		for (int i = 0; i < segs.length; ++i) {
 			IResource child = folder.findMember(segs[i]);
 			if (child == null || child.getType() != IResource.FOLDER) {
 				throw newNotPresentException();
 			}
 			folder = (IFolder) child;
 		}
 		return folder;
 	} else {
 		return rootResource;
 	}
 }
 /**
  * @see IPackageFragment
  */
 public boolean hasSubpackages() throws JavaModelException {
 	IJavaElement[] packages= ((IPackageFragmentRoot)getParent()).getChildren();
 	String name = getElementName();
 	int nameLength = name.length();
 	String packageName = isDefaultPackage() ? name : name+"."; //$NON-NLS-1$
 	for (int i= 0; i < packages.length; i++) {
 		String otherName = packages[i].getElementName();
 		if (otherName.length() > nameLength && otherName.startsWith(packageName)) {
 			return true;
 		}
 	}
 	return false;
 }
 /**
  * @see IPackageFragment
  */
 public boolean isDefaultPackage() {
 	return this.getElementName().length() == 0;
 }
 /**
  * @see ISourceManipulation
  */
 public void move(IJavaElement container, IJavaElement sibling, String rename, boolean force, IProgressMonitor monitor) throws JavaModelException {
 	if (container == null) {
 		throw new IllegalArgumentException(Util.bind("operation.nullContainer")); //$NON-NLS-1$
 	}
 	IJavaElement[] elements= new IJavaElement[] {this};
 	IJavaElement[] containers= new IJavaElement[] {container};
 	IJavaElement[] siblings= null;
 	if (sibling != null) {
 		siblings= new IJavaElement[] {sibling};
 	}
 	String[] renamings= null;
 	if (rename != null) {
 		renamings= new String[] {rename};
 	}
 	getJavaModel().move(elements, containers, siblings, renamings, force, monitor);
 }
 /**
  * Recomputes the children of this element, based on the current state
  * of the workbench.
  */
 public void refreshChildren() {
 	try {
 		OpenableElementInfo info= (OpenableElementInfo)getElementInfo();
 		computeChildren(info, getUnderlyingResource());
 	} catch (JavaModelException e) {
 		// do nothing.
 	}
 }
 /**
  * @see ISourceManipulation
  */
 public void rename(String name, boolean force, IProgressMonitor monitor) throws JavaModelException {
 	if (name == null) {
 		throw new IllegalArgumentException(Util.bind("element.nullName")); //$NON-NLS-1$
 	}
 	IJavaElement[] elements= new IJavaElement[] {this};
 	IJavaElement[] dests= new IJavaElement[] {this.getParent()};
 	String[] renamings= new String[] {name};
 	getJavaModel().rename(elements, dests, renamings, force, monitor);
 }
 /**
  * @private Debugging purposes
  */
 protected void toStringChildren(int tab, StringBuffer buffer, Object info) {
 	if (tab == 0) {
 		super.toStringChildren(tab, buffer, info);
 	}
 }
 /**
  * @private Debugging purposes
  */
 protected void toStringInfo(int tab, StringBuffer buffer, Object info) {
 	if (getElementName().length() == 0) {
 		buffer.append("[default]"); //$NON-NLS-1$
 	} else {
 		buffer.append(getElementName());
 	}
 	if (info == null) {
 		buffer.append(" (not open)"); //$NON-NLS-1$
 	} else {
 		if (tab > 0) {
 			buffer.append(" (...)"); //$NON-NLS-1$
 		}
 	}
 }
 }
	package org.eclipse.jdt.internal.core;

	/*
	* (c) Copyright IBM Corp. 2000, 2001.
	* All Rights Reserved.
	*/
	import org.eclipse.core.resources.*;
	import org.eclipse.core.runtime.CoreException;
	import org.eclipse.core.runtime.IProgressMonitor;

	import org.eclipse.jdt.core.*;

	import java.util.*;

	/**
	* @see IPackageFragment
	*/
	public class PackageFragment extends Openable implements IPackageFragment {
	/**
	* Constant empty list of class files
	*/
	protected static IClassFile[] fgEmptyClassFileList= new IClassFile[] {};
	/**
	* Constant empty list of compilation units
	*/
	protected static ICompilationUnit[] fgEmptyCompilationUnitList= new ICompilationUnit[] {};
	/**
	* Constructs a handle for a package fragment
	*
	* @see IPackageFragment
	*/
	protected PackageFragment(IPackageFragmentRoot root, String name) {
	super(PACKAGE_FRAGMENT, root, name);
	}
	/**
	* Compute the children of this package fragment.
	*
	* <p>Package fragments which are folders recognize files based on the
	* type of the fragment
	* <p>Package fragments which are in a jar only recognize .class files (
	* @see JarPackageFragment).
	*/
	protected boolean computeChildren(OpenableElementInfo info, IResource resource) throws JavaModelException {
	Vector vChildren = new Vector();
	int kind = getKind();
	String extType;
	if (kind == IPackageFragmentRoot.K_SOURCE) {
	extType = "java"; //$NON-NLS-1$
	} else {
	extType = "class"; //$NON-NLS-1$
	}
	try {
	IResource[] members = ((IContainer) resource).members();
	for (int i = 0, max = members.length; i < max; i++) {
	IResource child = members[i];
	if (child.getType() != IResource.FOLDER) {
	String extension = child.getProjectRelativePath().getFileExtension();
	if (extension != null) {
	if (extension.equalsIgnoreCase(extType)) {
	IJavaElement childElement;
	if (kind == IPackageFragmentRoot.K_SOURCE) {
	childElement = getCompilationUnit(child.getName());
	} else {
	childElement = getClassFile(child.getName());
	}
	vChildren.addElement(childElement);
	}
	}
	}
	}
	} catch (CoreException e) {
	throw new JavaModelException(e);
	}
	vChildren.trimToSize();
	IJavaElement[] children = new IJavaElement[vChildren.size()];
	vChildren.copyInto(children);
	info.setChildren(children);
	return true;
	}
	/**
	* Returns true if this fragment contains at least one java resource.
	* Returns false otherwise.
	*/
	public boolean containsJavaResources() throws JavaModelException {
	return ((PackageFragmentInfo) getElementInfo()).containsJavaResources();
	}
	/**
	* @see ISourceManipulation
	*/
	public void copy(IJavaElement container, IJavaElement sibling, String rename, boolean force, IProgressMonitor monitor) throws JavaModelException {
	if (container == null) {
	throw new IllegalArgumentException(Util.bind("operation.nullContainer")); //$NON-NLS-1$
	}
	IJavaElement[] elements= new IJavaElement[] {this};
	IJavaElement[] containers= new IJavaElement[] {container};
	IJavaElement[] siblings= null;
	if (sibling != null) {
	siblings= new IJavaElement[] {sibling};
	}
	String[] renamings= null;
	if (rename != null) {
	renamings= new String[] {rename};
	}
	getJavaModel().copy(elements, containers, siblings, renamings, force, monitor);
	}
	/**
	* @see IPackageFragment
	*/
	public ICompilationUnit createCompilationUnit(String name, String contents, boolean force, IProgressMonitor monitor) throws JavaModelException {
	CreateCompilationUnitOperation op= new CreateCompilationUnitOperation(this, name, contents, force);
	runOperation(op, monitor);
	return getCompilationUnit(name);
	}
	/**
	* @see JavaElement
	*/
	protected OpenableElementInfo createElementInfo() {
	return new PackageFragmentInfo();
	}
	/**
	* @see ISourceManipulation
	*/
	public void delete(boolean force, IProgressMonitor monitor) throws JavaModelException {
	IJavaElement[] elements = new IJavaElement[] {this};
	getJavaModel().delete(elements, force, monitor);
	}
	/**
	* @see Openable
	*/
	protected boolean generateInfos(OpenableElementInfo info, IProgressMonitor pm, Hashtable newElements, IResource underlyingResource) throws JavaModelException {
	return computeChildren(info, underlyingResource);
	}
	/**
	* @see IPackageFragment
	*/
	public IClassFile getClassFile(String name) {
	return new ClassFile(this, name);
	}
	/**
	* Returns a the collection of class files in this - a folder package fragment which has a root
	* that has its kind set to <code>IPackageFragmentRoot.K_Source</code> does not
	* recognize class files.
	*
	* @see IPackageFragment
	* @see JarPackageFragment
	*/
	public IClassFile[] getClassFiles() throws JavaModelException {
	if (getKind() == IPackageFragmentRoot.K_SOURCE) {
	return fgEmptyClassFileList;
	}

	Vector v= getChildrenOfType(CLASS_FILE);
	IClassFile[] array= new IClassFile[v.size()];
	v.copyInto(array);
	return array;
	}
	/**
	* @see IPackageFragment
	*/
	public ICompilationUnit getCompilationUnit(String name) {
	return new CompilationUnit(this, name);
	}
	/**
	* @see IPackageFragment
	*/
	public ICompilationUnit[] getCompilationUnits() throws JavaModelException {
	if (getKind() == IPackageFragmentRoot.K_BINARY) {
	return fgEmptyCompilationUnitList;
	}

	Vector v= getChildrenOfType(COMPILATION_UNIT);
	ICompilationUnit[] array= new ICompilationUnit[v.size()];
	v.copyInto(array);
	return array;
	}
	/**
	* @see JavaElement#getHandleMemento()
	*/
	protected char getHandleMementoDelimiter() {
	return JavaElement.JEM_PACKAGEFRAGMENT;
	}
	/**
	* @see IPackageFragment
	*/
	public int getKind() throws JavaModelException {
	return ((IPackageFragmentRoot)getParent()).getKind();
	}
	/**
	* Returns an array of non-java resources contained in the receiver.
	*/
	public Object[] getNonJavaResources() throws JavaModelException {
	if (this.isDefaultPackage()) {
	// We don't want to show non java resources of the default package (see PR #1G58NB8)
	return JavaElementInfo.NO_NON_JAVA_RESOURCES;
	} else {
	return ((PackageFragmentInfo) getElementInfo()).getNonJavaResources(getUnderlyingResource());
	}
	}
	/**
	* @see IJavaElement
	*/
	public IResource getUnderlyingResource() throws JavaModelException {
	IResource rootResource = fParent.getUnderlyingResource();
	if (rootResource == null) {
	//jar package fragment root that has no associated resource
	return null;
	}
	// the underlying resource may be a folder or a project (in the case that the project folder
	// is atually the package fragment root)
	if (rootResource.getType() == IResource.FOLDER \|\| rootResource.getType() == IResource.PROJECT) {
	IContainer folder = (IContainer) rootResource;
	String[] segs = Signature.getSimpleNames(fName);
	for (int i = 0; i < segs.length; ++i) {
	IResource child = folder.findMember(segs[i]);
	if (child == null \|\| child.getType() != IResource.FOLDER) {
	throw newNotPresentException();
	}
	folder = (IFolder) child;
	}
	return folder;
	} else {
	return rootResource;
	}
	}
	/**
	* @see IPackageFragment
	*/
	public boolean hasSubpackages() throws JavaModelException {
	IJavaElement[] packages= ((IPackageFragmentRoot)getParent()).getChildren();
	String name = getElementName();
	int nameLength = name.length();
	String packageName = isDefaultPackage() ? name : name+"."; //$NON-NLS-1$
	for (int i= 0; i < packages.length; i++) {
	String otherName = packages[i].getElementName();
	if (otherName.length() > nameLength && otherName.startsWith(packageName)) {
	return true;
	}
	}
	return false;
	}
	/**
	* @see IPackageFragment
	*/
	public boolean isDefaultPackage() {
	return this.getElementName().length() == 0;
	}
	/**
	* @see ISourceManipulation
	*/
	public void move(IJavaElement container, IJavaElement sibling, String rename, boolean force, IProgressMonitor monitor) throws JavaModelException {
	if (container == null) {
	throw new IllegalArgumentException(Util.bind("operation.nullContainer")); //$NON-NLS-1$
	}
	IJavaElement[] elements= new IJavaElement[] {this};
	IJavaElement[] containers= new IJavaElement[] {container};
	IJavaElement[] siblings= null;
	if (sibling != null) {
	siblings= new IJavaElement[] {sibling};
	}
	String[] renamings= null;
	if (rename != null) {
	renamings= new String[] {rename};
	}
	getJavaModel().move(elements, containers, siblings, renamings, force, monitor);
	}
	/**
	* Recomputes the children of this element, based on the current state
	* of the workbench.
	*/
	public void refreshChildren() {
	try {
	OpenableElementInfo info= (OpenableElementInfo)getElementInfo();
	computeChildren(info, getUnderlyingResource());
	} catch (JavaModelException e) {
	// do nothing.
	}
	}
	/**
	* @see ISourceManipulation
	*/
	public void rename(String name, boolean force, IProgressMonitor monitor) throws JavaModelException {
	if (name == null) {
	throw new IllegalArgumentException(Util.bind("element.nullName")); //$NON-NLS-1$
	}
	IJavaElement[] elements= new IJavaElement[] {this};
	IJavaElement[] dests= new IJavaElement[] {this.getParent()};
	String[] renamings= new String[] {name};
	getJavaModel().rename(elements, dests, renamings, force, monitor);
	}
	/**
	* @private Debugging purposes
	*/
	protected void toStringChildren(int tab, StringBuffer buffer, Object info) {
	if (tab == 0) {
	super.toStringChildren(tab, buffer, info);
	}
	}
	/**
	* @private Debugging purposes
	*/
	protected void toStringInfo(int tab, StringBuffer buffer, Object info) {
	if (getElementName().length() == 0) {
	buffer.append("[default]"); //$NON-NLS-1$
	} else {
	buffer.append(getElementName());
	}
	if (info == null) {
	buffer.append(" (not open)"); //$NON-NLS-1$
	} else {
	if (tab > 0) {
	buffer.append(" (...)"); //$NON-NLS-1$
	}
	}
	}
	}