Java IJavaArray类代码示例

import org.eclipse.jdt.debug.core.IJavaArray; //导入依赖的package包/类
private String valueToString(IJavaValue value) {
	if(value instanceof IJavaArray) {
		try {
			IJavaArray array = (IJavaArray) value;
			IJavaValue[] values = array.getValues();
			String s = "";
			for(int i = 0; i < values.length; i++) {
				if(!s.isEmpty())
					s += ", ";
				s += valueSpecialChars(values[i]);
			}
			return "{" + s + "}";
		}
		catch (DebugException e) {
			e.printStackTrace();
			return null;
		}
	}
	else
		return valueSpecialChars(value);
}
 

import org.eclipse.jdt.debug.core.IJavaArray; //导入依赖的package包/类
@Override
public boolean isMatrix() {
	if(dimensions < 2)
		return false;

	try {
		for(int i = 0; i < elements.length-1; i++) {
			if(elements[i].isNull() || elements[i+1].isNull())
				return false;
			else
				if(((IJavaArray) elements[i]).getLength() != ((IJavaArray) elements[i+1]).getLength())
					return false;
		}
	} catch (DebugException e) {
		e.printStackTrace(); // TODO termination
	}

	return true;
}
 

import org.eclipse.jdt.debug.core.IJavaArray; //导入依赖的package包/类
FImage readFImage(IJavaObject var) throws DebugException {
	int width = ((IJavaPrimitiveValue)var.getField("width", true).getValue()).getIntValue();
	int height = ((IJavaPrimitiveValue)var.getField("height", true).getValue()).getIntValue();
	
	IJavaValue[] data = ((IJavaArray)var.getField("pixels", false).getValue()).getValues();
	
	FImage img = new FImage(width, height);
	
	for (int y=0; y<height; y++) {
		IJavaValue[] row = ((IJavaArray) data[y]).getValues();
		
		for (int x=0; x<width; x++) {
			img.pixels[y][x] = ((IJavaPrimitiveValue) row[x]).getFloatValue();
		}
	}
	
	return img;
}
 

import org.eclipse.jdt.debug.core.IJavaArray; //导入依赖的package包/类
@Override
protected void displayResult(final IEvaluationResult result) {
	final Shell shell = JDIDebugUIPlugin.getShell();
	shell.getDisplay().asyncExec(new Runnable() {
		
		@Override
		public void run() {
		    MessageBox mb = new MessageBox(shell, SWT.OK);
		    mb.setText("Visualize Variable History:");		
		    IJavaValue value = result.getValue();
			if (value instanceof IJavaArray) {
					ArraysMainController.addExpression(new ArrayExpression(result.getSnippet(), (IJavaArray)value));
			}
		}
	});
}
 

import org.eclipse.jdt.debug.core.IJavaArray; //导入依赖的package包/类
private void getReachableObjects(IJavaValue value, Set<IJavaObject> objs) throws DebugException {
	if (value instanceof IJavaArray) {
		IJavaArray arr = (IJavaArray)value;
		if (objs.add(arr) && !EclipseUtils.isPrimitive(Signature.getElementType(arr.getSignature())) && !arr.getSignature().equals("[Ljava/lang/String;"))
			for (IJavaValue elem: arr.getValues())
				getReachableObjects(elem, objs);
	} else if (value instanceof IJavaObject) {
		IJavaObject obj = (IJavaObject)value;
		if (objs.add(obj)) {
			// We use the internal API here because the Eclipse one must get each field's value one-by-one and so is much slower.
			ObjectReference obj2 = ((JDIObjectValue)obj).getUnderlyingObject();
			if (obj2 != null)  // null values fail this test
				for (Map.Entry<Field, Value> field: obj2.getValues(obj2.referenceType().allFields()).entrySet())
					if (isUsefulStaticDFSField(field.getKey().declaringType().name(), field.getKey()))
						getReachableObjects(JDIValue.createValue((JDIDebugTarget)stack.getDebugTarget(), field.getValue()), objs);
		}
	}
}
 

import org.eclipse.jdt.debug.core.IJavaArray; //导入依赖的package包/类
protected int getHashCode(IJavaValue value) throws DebugException {
	if (value == null || value.isNull())
		return -37;
	else if (value instanceof IJavaPrimitiveValue)
		return ((IJavaPrimitiveValue)value).getIntValue() * 5 + 137;  // We add a number to avoid clustering around 0. 
	else if (value instanceof IJavaArray) {  // Heuristically only look at the array's length and its first ten elements.
		IJavaArray array = (IJavaArray)value;
		int length = array.getLength();
		int hashCode = length * 5 + array.getSignature().hashCode() * 7;
		for (int i = 0; i < 10 && i < length; i++)
			hashCode = 31 * hashCode + getHashCode(array.getValue(i));
		return hashCode;
	} else if (value instanceof IJavaClassObject)
		return ((IJavaClassObject)value).getInstanceType().getName().hashCode() * 11;
	else if ("V".equals(value.getSignature()))
		return -137;
	else {
		IJavaObject obj = (IJavaObject)value;
		if ("Ljava/lang/String;".equals(obj.getSignature()))  // Fast-path Strings
			return obj.toString().hashCode();
		return ((IJavaPrimitiveValue)obj.sendMessage("hashCode", "()I", new IJavaValue[] { }, thread, null)).getIntValue();
	}
}
 

import org.eclipse.jdt.debug.core.IJavaArray; //导入依赖的package包/类
/**
 * Gets a readable toString by looking inside arrays.
 * @param value The value whose toString we want.
 * @return A toString that looks inside arrays.
 */
private static String getToString(IJavaValue value) {
	try {
		if (value instanceof IJavaArray) {
			IJavaArray arr = (IJavaArray)value;
    		StringBuilder sb = new StringBuilder();
    		sb.append("[");
    		for (int i = 0; i < 5 && i < arr.getLength(); i++) {
    			if (i > 0)
    				sb.append(",");
    			sb.append(getToString(arr.getValue(i)));
    		}
    		if (arr.getLength() > 5)
    			sb.append(",").append(arr.getLength() - 5).append(" more...");
    		sb.append("]");
    		return sb.toString();
    	} else
    		return value.toString();
	} catch (DebugException e) {
		throw new RuntimeException(e);
	}
}
 

import org.eclipse.jdt.debug.core.IJavaArray; //导入依赖的package包/类
/**
 * Extends the given array by indexing into it or
 * getting its length.
 * @param arr The array to extend.
 * @return A new expression that extends the given array.
 * @throws DebugException
 */
private Expression extendArray(Expression arr) throws DebugException {
	Result arrResult = expressionEvaluator.getResult(arr, Collections.<Effect>emptySet());
	int arrLen = ((IJavaArray)arrResult.getValue().getValue()).getLength();
	Set<Effect> arrEffects = arrResult.getEffects();
	ExpressionWeightedList indexChoices = new ExpressionWeightedList(expressionEvaluator, weights);
	for (Expression expr: primitives)
		if (EclipseUtils.isInt(expr.getStaticType())) {
			int index = Integer.parseInt(expressionEvaluator.getValue(expr, arrEffects).getValueString());
			if (index >= 0 && index < arrLen)
				indexChoices.addWeighted(expr);
		}
	if (indexChoices.isEmpty() || random.nextDouble() * ExprStats.ARR_OP_PROB < ExprStats.ARR_LEN_PROB)
		return expressionMaker.makeFieldAccess(arr, "length", intType, null, thread);
	else
		return expressionMaker.makeArrayAccess(arr, indexChoices.getWeighted(), thread);
}
 

import org.eclipse.jdt.debug.core.IJavaArray; //导入依赖的package包/类
private static String getUnitFromTopStackFrame(IJavaThread thread) throws CoreException {
	if (!thread.hasStackFrames()) {
		return null;
	}

	IStackFrame top = thread.getTopStackFrame();
	if (top.getVariables().length > 0) {
		for (IVariable var : top.getVariables()) {
			try {
				IValue value = var.getValue();
				if (value instanceof IJavaValue) {
					IJavaObject javaValue = (IJavaObject) value;
					IJavaDebugTarget debugTarget = thread.getDebugTarget().getAdapter(IJavaDebugTarget.class);
					IJavaValue arg = debugTarget.newValue("Fully Qualified Name");
					// the signature (2nd argument) can be retrieved with javap. Unit extends soot.tagkit.Host for the tag support
					// -> javap -cp soot-trunk.jar -s soot.tagkit.Host
					// the signature is in the output under "descriptor"
					IJavaType type = javaValue.getJavaType();
					if (isTagHost(type)) { // check, if this is a unit, which contains Tags
						IJavaValue fqnTag = javaValue.sendMessage("getTag", "(Ljava/lang/String;)Lsoot/tagkit/Tag;", new IJavaValue[] { arg }, thread,
								false);
						IJavaValue tagValue = ((IJavaObject) fqnTag).sendMessage("getValue", "()[B", new IJavaValue[0], thread, false);
						IJavaArray byteArray = (IJavaArray) tagValue;
						byte[] b = new byte[byteArray.getLength()];
						for (int i = 0; i < b.length; i++) {
							IJavaPrimitiveValue byteValue = (IJavaPrimitiveValue) byteArray.getValue(i);
							b[i] = byteValue.getByteValue();
						}
						String currentUnitFqn = new String(b);
						return currentUnitFqn;
					}
				}
			} catch (Exception e) {
				logger.error("Couldn't retrieve variable " + var.getName() + " from top stack frame", e);
			}
		}
	}
	return null;
}
 

import org.eclipse.jdt.debug.core.IJavaArray; //导入依赖的package包/类
public ArrayReferenceModel(IJavaArray array, RuntimeModel runtime, IReferenceModel sourceReference) throws DebugException {
	super(array, runtime);
	if(sourceReference != null) {
		VariableInfo info = sourceReference.getVariableRole();
		if(info != null) {
			for(IReferenceModel ref : getModelElements()) {
				VariableInfo copy = info.convertToArrayAccessDim(ref);
				ref.setVariableRole(copy);
			}
		}
	}
}
 

import org.eclipse.jdt.debug.core.IJavaArray; //导入依赖的package包/类
ArrayModel(IJavaArray array, RuntimeModel runtime) throws DebugException {
	super(array, runtime);
	int len = Math.min(array.getLength(), PandionJView.getMaxArrayLength());
	elementsModel = new ArrayList<T>(len);
	elements = array.getValues();
	dimensions = getDimensions(array);
	componentType = getComponentType(array);
	initArray(array, len);
}
 

import org.eclipse.jdt.debug.core.IJavaArray; //导入依赖的package包/类
private void initArray(IJavaArray array, int length) throws DebugException {
	for(int i = 0; i < length - 1; i++)
		elementsModel.add(createElement((IJavaVariable) array.getVariable(i), i));

	if(length > 0)
		elementsModel.add(createElement((IJavaVariable) array.getVariable(array.getLength()-1), array.getLength()-1));
}
 

import org.eclipse.jdt.debug.core.IJavaArray; //导入依赖的package包/类
private Object getValues(IJavaArray javaArray) {
	try {
		String compType = getComponentType(javaArray);
		int dimensions = getDimensions(javaArray);
		PrimitiveType primitive = PrimitiveType.match(compType);
		IJavaValue[] values = javaArray.getValues();
		Object array = null;
		if(primitive != null) {
			Class<?> type = primitive.getArrayClass(dimensions);
			array = Array.newInstance(type, values.length);
		}
		else
			array = Array.newInstance(Object.class, values.length);

		if(getDimensions(javaArray) == 1) {
			if(primitive == null) {
				for(int j = 0; j < values.length; j++)
					if(!values[j].isNull())
						Array.set(array, j, values[j].getValueString());
			}
			else {
				primitive.fillPrimitiveValues(array, values);
			}
		}	
		else {
			for(int i = 0; i < values.length; i++) {
				IJavaValue val = values[i];
				if(!val.isNull())
					Array.set(array, i, getValues((IJavaArray) val));
			}
		}
		return array;
	}
	catch (DebugException e) {
		e.printStackTrace();
		getRuntimeModel().setTerminated();
		return new Object[0];
	}
}
 

import org.eclipse.jdt.debug.core.IJavaArray; //导入依赖的package包/类
public Dimension getMatrixDimension() {
	if(!isMatrix())
		throw new IllegalStateException("not a matrix");

	try {
		return new Dimension(getLength() == 0 ? 0 : ((IJavaArray) elements[0]).getLength(), getLength());
	} catch (DebugException e) {
		e.printStackTrace();
		getRuntimeModel().setTerminated();
	}
	return new Dimension(0, 0);
}
 

import org.eclipse.jdt.debug.core.IJavaArray; //导入依赖的package包/类
public ArrayExpression(String name, IJavaArray value) {
	this.name = name;
	this.value = value;
	controllers = new HashMap<FieldImpl, AbstractArrayController>();
	try {
		compType = ((IJavaArrayType)value.getJavaType()).getComponentType();
		compJDIType = ((JDIType)compType).getUnderlyingType();
	} catch (DebugException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	}
	
}