org.eclipse.jdt.debug/jdi/org/eclipse/jdi/internal/ArrayTypeImpl.java - jdt/eclipse.jdt.debug - Git at Google

 /*******************************************************************************
  * Copyright (c) 2000, 2015 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  *     IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.jdi.internal;

 import java.io.ByteArrayOutputStream;
 import java.io.DataInputStream;
 import java.io.DataOutputStream;
 import java.io.IOException;
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;

 import org.eclipse.jdi.internal.jdwp.JdwpArrayID;
 import org.eclipse.jdi.internal.jdwp.JdwpCommandPacket;
 import org.eclipse.jdi.internal.jdwp.JdwpID;
 import org.eclipse.jdi.internal.jdwp.JdwpObjectID;
 import org.eclipse.jdi.internal.jdwp.JdwpReplyPacket;

 import com.sun.jdi.AbsentInformationException;
 import com.sun.jdi.ArrayReference;
 import com.sun.jdi.ArrayType;
 import com.sun.jdi.ClassNotLoadedException;
 import com.sun.jdi.Field;
 import com.sun.jdi.Location;
 import com.sun.jdi.Method;
 import com.sun.jdi.ReferenceType;
 import com.sun.jdi.Type;
 import com.sun.jdi.Value;

 /**
  * this class implements the corresponding interfaces declared by the JDI
  * specification. See the com.sun.jdi package for more information.
  *
  */
 public class ArrayTypeImpl extends ReferenceTypeImpl implements ArrayType {
 	/** JDWP Tag. */
 	public static final byte typeTag = JdwpID.TYPE_TAG_ARRAY;
 	/** component type */
 	private Type fComponentType;
 	/** Component type name */
 	private String fComponentTypeName;

 	/**
 	 * Creates new ArrayTypeImpl.
 	 * @param vmImpl the VM
 	 * @param arrayID the array ID
 	 */
 	public ArrayTypeImpl(VirtualMachineImpl vmImpl, JdwpArrayID arrayID) {
 		super("ArrayType", vmImpl, arrayID); //$NON-NLS-1$
 	}

 	/**
 	 * Creates new ArrayTypeImpl.
 	 * @param vmImpl the VM
 	 * @param arrayID the array ID
 	 * @param signature the array type signature
 	 * @param genericSignature the array type generic signature
 	 */
 	public ArrayTypeImpl(VirtualMachineImpl vmImpl, JdwpArrayID arrayID,
 			String signature, String genericSignature) {
 		super("ArrayType", vmImpl, arrayID, signature, genericSignature); //$NON-NLS-1$
 	}

 	/**
 	 * @return Returns type tag.
 	 */
 	@Override
 	public byte typeTag() {
 		return typeTag;
 	}

 	/**
 	 * @return Create a null value instance of the type.
 	 */
 	@Override
 	public Value createNullValue() {
 		return new ArrayReferenceImpl(virtualMachineImpl(), new JdwpObjectID(
 				virtualMachineImpl()));
 	}

 	/**
 	 * @return Returns the JNI signature of the components of this array class.
 	 */
 	@Override
 	public String componentSignature() {
 		return signature().substring(1);
 	}

 	/**
 	 * @return Returns the type of the array components.
 	 * @throws ClassNotLoadedException if the class has not been loaded
 	 */
 	@Override
 	public Type componentType() throws ClassNotLoadedException {
 		if (fComponentType == null) {
 			fComponentType = TypeImpl.create(virtualMachineImpl(),
 					componentSignature(), classLoader());
 		}
 		return fComponentType;
 	}

 	/**
 	 * @return Returns a text representation of the component type.
 	 */
 	@Override
 	public String componentTypeName() {
 		if (fComponentTypeName == null) {
 			fComponentTypeName = signatureToName(componentSignature());
 		}
 		return fComponentTypeName;
 	}

 	/**
 	 * @param length the desired length of the new array
 	 * @return Creates and returns a new instance of this array class in the
 	 *         target VM.
 	 */
 	@Override
 	public ArrayReference newInstance(int length) {
 		// Note that this information should not be cached.
 		initJdwpRequest();
 		try {
 			ByteArrayOutputStream outBytes = new ByteArrayOutputStream();
 			DataOutputStream outData = new DataOutputStream(outBytes);
 			write(this, outData);
 			writeInt(length, "length", outData); //$NON-NLS-1$

 			JdwpReplyPacket replyPacket = requestVM(
 					JdwpCommandPacket.AT_NEW_INSTANCE, outBytes);
 			defaultReplyErrorHandler(replyPacket.errorCode());

 			DataInputStream replyData = replyPacket.dataInStream();
 			ArrayReferenceImpl arrayRef = (ArrayReferenceImpl) ObjectReferenceImpl
 					.readObjectRefWithTag(this, replyData);
 			return arrayRef;
 		} catch (IOException e) {
 			defaultIOExceptionHandler(e);
 			return null;
 		} finally {
 			handledJdwpRequest();
 		}
 	}

 	/**
 	 * @return Returns a List filled with all Location objects that map to the
 	 *         given line number.
 	 */
 	@Override
 	public List<Location> locationsOfLine(int line) {
 		// If this reference type is an ArrayType, the returned list is always
 		// empty.
 		return Collections.EMPTY_LIST;
 	}

 	/**
 	 * @param target the target
 	 * @param in the stream
 	 * @return Reads JDWP representation and returns new instance.
 	 * @throws IOException if the reading fails
 	 */
 	public static ArrayTypeImpl read(MirrorImpl target, DataInputStream in)
 			throws IOException {
 		VirtualMachineImpl vmImpl = target.virtualMachineImpl();
 		JdwpArrayID ID = new JdwpArrayID(vmImpl);
 		ID.read(in);
 		if (target.fVerboseWriter != null)
 			target.fVerboseWriter.println("arrayType", ID.value()); //$NON-NLS-1$

 		if (ID.isNull())
 			return null;

 		ArrayTypeImpl mirror = (ArrayTypeImpl) vmImpl.getCachedMirror(ID);
 		if (mirror == null) {
 			mirror = new ArrayTypeImpl(vmImpl, ID);
 			vmImpl.addCachedMirror(mirror);
 		}
 		return mirror;
 	}

 	/**
 	 * @return Returns modifier bits.
 	 */
 	@Override
 	public int modifiers() {
 		return MODIFIER_ACC_PUBLIC | MODIFIER_ACC_FINAL;
 	}

 	/**
 	 * @return Returns a list containing each Field declared in this type.
 	 */
 	@Override
 	public List<Field> fields() {
 		return Collections.EMPTY_LIST;
 	}

 	/**
 	 * @return Returns a list containing each Method declared in this type.
 	 */
 	@Override
 	public List<Method> methods() {
 		return Collections.EMPTY_LIST;
 	}

 	/**
 	 * @return a Map of the requested static Field objects with their Value.
 	 */
 	@Override
 	public Map<Field, Value> getValues(List<? extends Field> fields) {
 		if (fields.isEmpty()) {
 			return new HashMap<Field, Value>();
 		}

 		throw new IllegalArgumentException(
 				JDIMessages.ArrayTypeImpl_getValues_not_allowed_on_array_1);
 	}

 	/**
 	 * @return Returns a List containing each ReferenceType declared within this
 	 *         type.
 	 */
 	@Override
 	public List<ReferenceType> nestedTypes() {
 		return Collections.EMPTY_LIST;
 	}

 	/**
 	 * @return Returns status of class/interface.
 	 */
 	@Override
 	protected int status() {
 		return ReferenceTypeImpl.JDWP_CLASS_STATUS_INITIALIZED
 				| ReferenceTypeImpl.JDWP_CLASS_STATUS_PREPARED
 				| ReferenceTypeImpl.JDWP_CLASS_STATUS_VERIFIED;
 	}

 	/**
 	 * @param target the target
 	 * @param withGenericSignature if the generic signature should be read
 	 * @param in the stream
 	 * @return Reads JDWP representation and returns new instance.
 	 * @throws IOException if the read fails
 	 */
 	public static ArrayTypeImpl readWithSignature(MirrorImpl target,
 			boolean withGenericSignature, DataInputStream in)
 			throws IOException {
 		VirtualMachineImpl vmImpl = target.virtualMachineImpl();
 		JdwpArrayID ID = new JdwpArrayID(vmImpl);
 		ID.read(in);
 		if (target.fVerboseWriter != null)
 			target.fVerboseWriter.println("arrayType", ID.value()); //$NON-NLS-1$

 		String signature = target.readString("signature", in); //$NON-NLS-1$
 		String genericSignature = null;
 		if (withGenericSignature) {
 			genericSignature = target.readString("generic signature", in); //$NON-NLS-1$
 		}
 		if (ID.isNull())
 			return null;

 		ArrayTypeImpl mirror = (ArrayTypeImpl) vmImpl.getCachedMirror(ID);
 		if (mirror == null) {
 			mirror = new ArrayTypeImpl(vmImpl, ID);
 			vmImpl.addCachedMirror(mirror);
 		}
 		mirror.setSignature(signature);
 		mirror.setGenericSignature(genericSignature);
 		return mirror;
 	}

 	/**
 	 * @see com.sun.jdi.ReferenceType#allLineLocations()
 	 */
 	@Override
 	public List<Location> allLineLocations() {
 		// If this reference type is an ArrayType, the returned list is always
 		// empty.
 		return Collections.EMPTY_LIST;
 	}

 	/**
 	 * @see com.sun.jdi.ReferenceType#allMethods()
 	 */
 	@Override
 	public List<Method> allMethods() {
 		return Collections.EMPTY_LIST;
 	}

 	/**
 	 * @see com.sun.jdi.ReferenceType#allFields()
 	 */
 	@Override
 	public List<Field> allFields() {
 		return Collections.EMPTY_LIST;
 	}

 	/**
 	 * @return Returns an identifying name for the source corresponding to the
 	 *         declaration of this type.
 	 */
 	@Override
 	public String sourceName() throws AbsentInformationException {
 		throw new AbsentInformationException(
 				JDIMessages.ArrayTypeImpl_No_source_name_for_Arrays_1);
 	}

 	/**
 	 * @see com.sun.jdi.ReferenceType#visibleFields()
 	 */
 	@Override
 	public List<Field> visibleFields() {
 		return Collections.EMPTY_LIST;
 	}

 	/**
 	 * @see com.sun.jdi.ReferenceType#visibleMethods()
 	 */
 	@Override
 	public List<Method> visibleMethods() {
 		return Collections.EMPTY_LIST;
 	}

 	/**
 	 * @see com.sun.jdi.ReferenceType#fieldByName(String)
 	 */
 	@Override
 	public Field fieldByName(String arg1) {
 		return null;
 	}

 	/**
 	 * @see com.sun.jdi.ReferenceType#methodsByName(String)
 	 */
 	@Override
 	public List<Method> methodsByName(String arg1) {
 		return Collections.EMPTY_LIST;
 	}

 	/**
 	 * @see com.sun.jdi.ReferenceType#methodsByName(String, String)
 	 */
 	@Override
 	public List<Method> methodsByName(String arg1, String arg2) {
 		return Collections.EMPTY_LIST;
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2000, 2015 IBM Corporation and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v10.html
	*
	* Contributors:
	* IBM Corporation - initial API and implementation
	*******************************************************************************/
	package org.eclipse.jdi.internal;

	import java.io.ByteArrayOutputStream;
	import java.io.DataInputStream;
	import java.io.DataOutputStream;
	import java.io.IOException;
	import java.util.Collections;
	import java.util.HashMap;
	import java.util.List;
	import java.util.Map;

	import org.eclipse.jdi.internal.jdwp.JdwpArrayID;
	import org.eclipse.jdi.internal.jdwp.JdwpCommandPacket;
	import org.eclipse.jdi.internal.jdwp.JdwpID;
	import org.eclipse.jdi.internal.jdwp.JdwpObjectID;
	import org.eclipse.jdi.internal.jdwp.JdwpReplyPacket;

	import com.sun.jdi.AbsentInformationException;
	import com.sun.jdi.ArrayReference;
	import com.sun.jdi.ArrayType;
	import com.sun.jdi.ClassNotLoadedException;
	import com.sun.jdi.Field;
	import com.sun.jdi.Location;
	import com.sun.jdi.Method;
	import com.sun.jdi.ReferenceType;
	import com.sun.jdi.Type;
	import com.sun.jdi.Value;

	/**
	* this class implements the corresponding interfaces declared by the JDI
	* specification. See the com.sun.jdi package for more information.
	*
	*/
	public class ArrayTypeImpl extends ReferenceTypeImpl implements ArrayType {
	/** JDWP Tag. */
	public static final byte typeTag = JdwpID.TYPE_TAG_ARRAY;
	/** component type */
	private Type fComponentType;
	/** Component type name */
	private String fComponentTypeName;

	/**
	* Creates new ArrayTypeImpl.
	* @param vmImpl the VM
	* @param arrayID the array ID
	*/
	public ArrayTypeImpl(VirtualMachineImpl vmImpl, JdwpArrayID arrayID) {
	super("ArrayType", vmImpl, arrayID); //$NON-NLS-1$
	}

	/**
	* Creates new ArrayTypeImpl.
	* @param vmImpl the VM
	* @param arrayID the array ID
	* @param signature the array type signature
	* @param genericSignature the array type generic signature
	*/
	public ArrayTypeImpl(VirtualMachineImpl vmImpl, JdwpArrayID arrayID,
	String signature, String genericSignature) {
	super("ArrayType", vmImpl, arrayID, signature, genericSignature); //$NON-NLS-1$
	}

	/**
	* @return Returns type tag.
	*/
	@Override
	public byte typeTag() {
	return typeTag;
	}

	/**
	* @return Create a null value instance of the type.
	*/
	@Override
	public Value createNullValue() {
	return new ArrayReferenceImpl(virtualMachineImpl(), new JdwpObjectID(
	virtualMachineImpl()));
	}

	/**
	* @return Returns the JNI signature of the components of this array class.
	*/
	@Override
	public String componentSignature() {
	return signature().substring(1);
	}

	/**
	* @return Returns the type of the array components.
	* @throws ClassNotLoadedException if the class has not been loaded
	*/
	@Override
	public Type componentType() throws ClassNotLoadedException {
	if (fComponentType == null) {
	fComponentType = TypeImpl.create(virtualMachineImpl(),
	componentSignature(), classLoader());
	}
	return fComponentType;
	}

	/**
	* @return Returns a text representation of the component type.
	*/
	@Override
	public String componentTypeName() {
	if (fComponentTypeName == null) {
	fComponentTypeName = signatureToName(componentSignature());
	}
	return fComponentTypeName;
	}

	/**
	* @param length the desired length of the new array
	* @return Creates and returns a new instance of this array class in the
	* target VM.
	*/
	@Override
	public ArrayReference newInstance(int length) {
	// Note that this information should not be cached.
	initJdwpRequest();
	try {
	ByteArrayOutputStream outBytes = new ByteArrayOutputStream();
	DataOutputStream outData = new DataOutputStream(outBytes);
	write(this, outData);
	writeInt(length, "length", outData); //$NON-NLS-1$

	JdwpReplyPacket replyPacket = requestVM(
	JdwpCommandPacket.AT_NEW_INSTANCE, outBytes);
	defaultReplyErrorHandler(replyPacket.errorCode());

	DataInputStream replyData = replyPacket.dataInStream();
	ArrayReferenceImpl arrayRef = (ArrayReferenceImpl) ObjectReferenceImpl
	.readObjectRefWithTag(this, replyData);
	return arrayRef;
	} catch (IOException e) {
	defaultIOExceptionHandler(e);
	return null;
	} finally {
	handledJdwpRequest();
	}
	}

	/**
	* @return Returns a List filled with all Location objects that map to the
	* given line number.
	*/
	@Override
	public List<Location> locationsOfLine(int line) {
	// If this reference type is an ArrayType, the returned list is always
	// empty.
	return Collections.EMPTY_LIST;
	}

	/**
	* @param target the target
	* @param in the stream
	* @return Reads JDWP representation and returns new instance.
	* @throws IOException if the reading fails
	*/
	public static ArrayTypeImpl read(MirrorImpl target, DataInputStream in)
	throws IOException {
	VirtualMachineImpl vmImpl = target.virtualMachineImpl();
	JdwpArrayID ID = new JdwpArrayID(vmImpl);
	ID.read(in);
	if (target.fVerboseWriter != null)
	target.fVerboseWriter.println("arrayType", ID.value()); //$NON-NLS-1$

	if (ID.isNull())
	return null;

	ArrayTypeImpl mirror = (ArrayTypeImpl) vmImpl.getCachedMirror(ID);
	if (mirror == null) {
	mirror = new ArrayTypeImpl(vmImpl, ID);
	vmImpl.addCachedMirror(mirror);
	}
	return mirror;
	}

	/**
	* @return Returns modifier bits.
	*/
	@Override
	public int modifiers() {
	return MODIFIER_ACC_PUBLIC \| MODIFIER_ACC_FINAL;
	}

	/**
	* @return Returns a list containing each Field declared in this type.
	*/
	@Override
	public List<Field> fields() {
	return Collections.EMPTY_LIST;
	}

	/**
	* @return Returns a list containing each Method declared in this type.
	*/
	@Override
	public List<Method> methods() {
	return Collections.EMPTY_LIST;
	}

	/**
	* @return a Map of the requested static Field objects with their Value.
	*/
	@Override
	public Map<Field, Value> getValues(List<? extends Field> fields) {
	if (fields.isEmpty()) {
	return new HashMap<Field, Value>();
	}

	throw new IllegalArgumentException(
	JDIMessages.ArrayTypeImpl_getValues_not_allowed_on_array_1);
	}

	/**
	* @return Returns a List containing each ReferenceType declared within this
	* type.
	*/
	@Override
	public List<ReferenceType> nestedTypes() {
	return Collections.EMPTY_LIST;
	}

	/**
	* @return Returns status of class/interface.
	*/
	@Override
	protected int status() {
	return ReferenceTypeImpl.JDWP_CLASS_STATUS_INITIALIZED
	\| ReferenceTypeImpl.JDWP_CLASS_STATUS_PREPARED
	\| ReferenceTypeImpl.JDWP_CLASS_STATUS_VERIFIED;
	}

	/**
	* @param target the target
	* @param withGenericSignature if the generic signature should be read
	* @param in the stream
	* @return Reads JDWP representation and returns new instance.
	* @throws IOException if the read fails
	*/
	public static ArrayTypeImpl readWithSignature(MirrorImpl target,
	boolean withGenericSignature, DataInputStream in)
	throws IOException {
	VirtualMachineImpl vmImpl = target.virtualMachineImpl();
	JdwpArrayID ID = new JdwpArrayID(vmImpl);
	ID.read(in);
	if (target.fVerboseWriter != null)
	target.fVerboseWriter.println("arrayType", ID.value()); //$NON-NLS-1$

	String signature = target.readString("signature", in); //$NON-NLS-1$
	String genericSignature = null;
	if (withGenericSignature) {
	genericSignature = target.readString("generic signature", in); //$NON-NLS-1$
	}
	if (ID.isNull())
	return null;

	ArrayTypeImpl mirror = (ArrayTypeImpl) vmImpl.getCachedMirror(ID);
	if (mirror == null) {
	mirror = new ArrayTypeImpl(vmImpl, ID);
	vmImpl.addCachedMirror(mirror);
	}
	mirror.setSignature(signature);
	mirror.setGenericSignature(genericSignature);
	return mirror;
	}

	/**
	* @see com.sun.jdi.ReferenceType#allLineLocations()
	*/
	@Override
	public List<Location> allLineLocations() {
	// If this reference type is an ArrayType, the returned list is always
	// empty.
	return Collections.EMPTY_LIST;
	}

	/**
	* @see com.sun.jdi.ReferenceType#allMethods()
	*/
	@Override
	public List<Method> allMethods() {
	return Collections.EMPTY_LIST;
	}

	/**
	* @see com.sun.jdi.ReferenceType#allFields()
	*/
	@Override
	public List<Field> allFields() {
	return Collections.EMPTY_LIST;
	}

	/**
	* @return Returns an identifying name for the source corresponding to the
	* declaration of this type.
	*/
	@Override
	public String sourceName() throws AbsentInformationException {
	throw new AbsentInformationException(
	JDIMessages.ArrayTypeImpl_No_source_name_for_Arrays_1);
	}

	/**
	* @see com.sun.jdi.ReferenceType#visibleFields()
	*/
	@Override
	public List<Field> visibleFields() {
	return Collections.EMPTY_LIST;
	}

	/**
	* @see com.sun.jdi.ReferenceType#visibleMethods()
	*/
	@Override
	public List<Method> visibleMethods() {
	return Collections.EMPTY_LIST;
	}

	/**
	* @see com.sun.jdi.ReferenceType#fieldByName(String)
	*/
	@Override
	public Field fieldByName(String arg1) {
	return null;
	}

	/**
	* @see com.sun.jdi.ReferenceType#methodsByName(String)
	*/
	@Override
	public List<Method> methodsByName(String arg1) {
	return Collections.EMPTY_LIST;
	}

	/**
	* @see com.sun.jdi.ReferenceType#methodsByName(String, String)
	*/
	@Override
	public List<Method> methodsByName(String arg1, String arg2) {
	return Collections.EMPTY_LIST;
	}
	}