diff options
Diffstat (limited to 'jsf/plugins/org.eclipse.jst.jsf.core/src/org/eclipse/jst/jsf/core/internal/jem/BeanProxyUtil.java')
| -rw-r--r-- | jsf/plugins/org.eclipse.jst.jsf.core/src/org/eclipse/jst/jsf/core/internal/jem/BeanProxyUtil.java | 509 |
1 files changed, 0 insertions, 509 deletions
diff --git a/jsf/plugins/org.eclipse.jst.jsf.core/src/org/eclipse/jst/jsf/core/internal/jem/BeanProxyUtil.java b/jsf/plugins/org.eclipse.jst.jsf.core/src/org/eclipse/jst/jsf/core/internal/jem/BeanProxyUtil.java deleted file mode 100644 index ac189b31d..000000000 --- a/jsf/plugins/org.eclipse.jst.jsf.core/src/org/eclipse/jst/jsf/core/internal/jem/BeanProxyUtil.java +++ /dev/null @@ -1,509 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2001, 2008 Oracle 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: - * Oracle Corporation - initial API and implementation - *******************************************************************************/ -package org.eclipse.jst.jsf.core.internal.jem; - -import org.eclipse.core.resources.IProject; -import org.eclipse.jdt.core.IField; -import org.eclipse.jdt.core.IJavaProject; -import org.eclipse.jdt.core.IType; -import org.eclipse.jdt.core.JavaCore; -import org.eclipse.jdt.core.JavaModelException; -import org.eclipse.jem.internal.proxy.core.IBeanProxy; -import org.eclipse.jem.internal.proxy.core.IBeanTypeProxy; -import org.eclipse.jem.internal.proxy.core.IFieldProxy; -import org.eclipse.jem.internal.proxy.core.IIntegerBeanProxy; -import org.eclipse.jem.internal.proxy.core.IMethodProxy; -import org.eclipse.jem.internal.proxy.core.IStringBeanProxy; -import org.eclipse.jem.internal.proxy.core.ThrowableProxy; -import org.eclipse.jst.jsf.common.util.TypeUtil; -import org.eclipse.jst.jsf.core.internal.JSFCorePlugin; - -/** - * Convenience methods for using bean proxies - * - * @author cbateman - * - */ -public final class BeanProxyUtil -{ - - /** - * A convenience wrapper for manipulating JEM proxy types - * - */ - public static class BeanProxyWrapper - { - private final static IBeanProxy[] NO_ARGS = new IBeanProxy[0]; - private final static IBeanTypeProxy[] NO_ARG_TYPES = new IBeanTypeProxy[0]; - - private final IBeanTypeProxy _typeProxy; - private final IProject _project; - private IBeanProxy _instance; - - /** - * @param project - * @param typeProxy - */ - public BeanProxyWrapper(final IProject project, final IBeanTypeProxy typeProxy) - { - super(); - _typeProxy = typeProxy; - _project = project; - } - - /** - * Initialize a proxied instance of the type referred to by typeProxy. - * - * @throws ProxyException - */ - public void init() throws ProxyException - { - if (_instance == null) - { - try - { - _instance = _typeProxy.newInstance(); - } - catch (final ThrowableProxy e) - { - throw new ProxyException(e); - } - catch (final NoClassDefFoundError ndfe) - { - throw new ProxyException(ndfe); - } - catch (final ExceptionInInitializerError e) - { - throw new ProxyException(e); - } - } - } - - /** - * Re-initialize the proxied instance of typeProxy. - * - * @throws ProxyException - */ - public void reinit() throws ProxyException - { - _instance = null; - init(); - } - - /** - * @return the instance proxy - */ - public IBeanProxy getInstance() - { - return _instance; - } - - /** - * <p> - * Call the method called methodName on the proxied instance. If - * args.length is 0 then the zero-argument method is found and called. - * </p> - * - * @param methodName - * @param args - * @param argTypes - * @return the result of calling the method or null if there is no such - * method. - * @throws ProxyException - */ - public IBeanProxy call(final String methodName, - final IBeanProxy[] args, final IBeanTypeProxy[] argTypes) - throws ProxyException - { - try - { - final IMethodProxy method = getMethodProxy(methodName, argTypes); - /*(argTypes.length == 0) ? _typeProxy - .getMethodProxy(methodName) : _typeProxy - .getMethodProxy(methodName, argTypes);*/ - - if (method != null) - { - method.setAccessible(true); - return method.invoke(_instance, args); - } - } - catch (final ThrowableProxy tp) - { - throw new ProxyException(tp); - } - catch (final NoClassDefFoundError ndfe) - { - throw new ProxyException(ndfe); - } - - return null; - } - - /** - * Convenience method for call(methodName, new {@link IBeanProxy}[0], - * new {@link IBeanTypeProxy}[0]) - * - * @param methodName - * @return the proxied return value - * @throws ProxyException - */ - public IBeanProxy call(final String methodName) throws ProxyException - { - return call(methodName, NO_ARGS, NO_ARG_TYPES); - } - - /** - * <p> - * Calls the zero-argument method called 'methodName' on the proxied - * instance and if it results in a String return value, returns it. If - * the method does not return a String value, then null is returned. - * </p> - * - * @param methodName - * @return the string value or null. - * @throws ProxyException - */ - public String callStringMethod(final String methodName) - throws ProxyException - { - final IBeanProxy result = call(methodName); - - if (result instanceof IStringBeanProxy) - { - return ((IStringBeanProxy) result).stringValue(); - } - - return null; - } - - /** - * <p> - * Calls the zero-argument method called 'methodName' on the proxied - * instance and if it results in an Integer value, returns it. If the - * method does not return an integer value, then null is returned. - * </p> - * - * @param methodName - * @return the integer value or null. - * @throws ProxyException - */ - public Integer callIntMethod(final String methodName) - throws ProxyException - { - final IBeanProxy result = call(methodName, NO_ARGS, NO_ARG_TYPES); - - if (result instanceof IIntegerBeanProxy) - { - return Integer.valueOf(((IIntegerBeanProxy) result).intValue()); - } - - return null; - } - - /** - * Use the typeProxy for the proxied instance to try to acquire the - * field called fieldName of type String. Note that this won't find - * private fields on supertypes. - * - * Equivalent to getStringFieldValue(fieldName, _typeProxy); - * - * @param fieldName - * @return the String value of fieldName on the proxied instance or - * null. - * @throws ProxyException - */ - public String getStringFieldValue(final String fieldName) - throws ProxyException - { - return getStringFieldValue(fieldName, _typeProxy); - } - - /** - * Use the provided typeProxy to acquire the field proxy for the field - * proxy called fieldName. Normally, you would use the type proxy of the - * instance bean, however there are cases such as acquiring the value a - * private field on a supertype where you need the type proxy for the - * super type. - * - * @param fieldName - * @param typeProxy - * @return the string value or null. - * @throws ProxyException - */ - public String getStringFieldValue(final String fieldName, - final IBeanTypeProxy typeProxy) throws ProxyException - { - final IBeanProxy value = getFieldValue(fieldName, typeProxy); - - if (value instanceof IStringBeanProxy) - { - return ((IStringBeanProxy) value).stringValue(); - } - - return null; - } - - /** - * @param fieldName - * @param typeProxy - * @return the declared field value on the proxied instance called - * fieldName or null. - * @throws ProxyException - */ - public IBeanProxy getFieldValue(final String fieldName, - final IBeanTypeProxy typeProxy) throws ProxyException - { - // avoid having JEM log a warning if we can prove the call to find - // the field will fail - if (!hasField(fieldName)) - { - return null; - } - - try - { - final IFieldProxy fieldProxy = typeProxy - .getDeclaredFieldProxy(fieldName); - - if (fieldProxy != null) - { - fieldProxy.setAccessible(true); - return fieldProxy.get(_instance); - } - } - catch (final ThrowableProxy e) - { - throw new ProxyException(e); - } - catch (final NoClassDefFoundError ndfe) - { - throw new ProxyException(ndfe); - } - - return null; - } - - /** - * Same as {@link #getFieldValue(String, IBeanTypeProxy)} except it will - * climb the parent hierarchy looking for the first field called - * fieldName. - * - * @param fieldName - * @param typeProxy - * @return the proxied value or null - * @throws ProxyException - */ - public IBeanProxy getFieldValueIncludeParents(final String fieldName, - final IBeanTypeProxy typeProxy) throws ProxyException - { - IBeanTypeProxy curType = typeProxy; - - PARENT_LOOP: while (curType != null) - { - final IBeanProxy field = getFieldValue(fieldName, curType); - if (field != null) - { - return field; - } - - try - { - IBeanTypeProxy oldType = curType; - curType = curType.getSuperBeanTypeProxy(); - // avoid infinite loop: if the parent of curType can't - // be resolved, JEM returns the same type, so curType - // never becomes null - if (oldType == curType) - { - break PARENT_LOOP; - } - } - catch (final NullPointerException npe) - { - // suppress npe caused by getSuperBeanTypeProxy - // not doing a null check on getSuperType() - curType = null; - } - } - - // have got to the top of hierarchy and not found the field - return null; - } - - /** - * @return the proxied instance - */ - public final IBeanProxy getBeanProxy() - { - return _instance; - } - - private IMethodProxy getMethodProxy(final String methodName, final IBeanTypeProxy[] argTypes) - { - IBeanTypeProxy curType = _typeProxy; - - PARENT_LOOP: while (curType != null) - { - final IMethodProxy[] declaredMethods = curType.getDeclaredMethods(); - if (declaredMethods != null) - { - final IMethodProxy foundMethod = findMethodInList(methodName, argTypes, declaredMethods); - if (foundMethod != null) - { - return foundMethod; - } - } - - // avoid infinite loop: if the parent of curType can't - // be resolved, JEM returns the same type, so curType - // never becomes null - IBeanTypeProxy oldType = curType; - curType = _typeProxy.getSuperBeanTypeProxy(); - if (oldType == curType) - { - break PARENT_LOOP; - } - } - return null; - } - - private IMethodProxy findMethodInList(final String methodName, final IBeanTypeProxy[] argTypes, - final IMethodProxy[] listOfMethods) - { - METHODS_LOOP: for (final IMethodProxy methodProxy : listOfMethods) - { - if (methodName.equals(methodProxy.getName())) - { - final IBeanTypeProxy[] parameterTypes = - methodProxy.getParameterTypes(); - if (argTypes.length == parameterTypes.length) - { - for (int i = 0; i < argTypes.length; i++) - { - if (!argTypes[i].getTypeName().equals(parameterTypes[i].getTypeName())) - { - // if we find a parameter type mismatch, then - // skip this method; it's not it - continue METHODS_LOOP; - } - } - // if we get to here, we have a method with right name - // and parameters - return methodProxy; - } - } - } - return null; - } - - private boolean hasField(final String fieldName) - { - final IType type = lazilyCalculateType(); - if (type != null) - { - final IField field = type.getField(fieldName); - return field.exists(); - } - return false; - } - - private IType _type; - private boolean _checkedType; - private IType lazilyCalculateType() - { - if (!_checkedType) - { - _checkedType = true; - final String typeName = _typeProxy.getTypeName(); - final IJavaProject javaProject = JavaCore.create(_project); - if (typeName != null && typeName.startsWith("L")) //$NON-NLS-1$ - { - _type = TypeUtil.resolveType(javaProject, typeName); - } - else - { - try - { - _type = javaProject.findType(typeName); - } - catch (JavaModelException e) - { - JSFCorePlugin.log(e, "While loading type: "+typeName); //$NON-NLS-1$ - } - } - } - return _type; - } - -// private Map<String, List<IMethod>> _methods; -// -// private Map<String, List<IMethod>> lazilyCalculateMethods(final IType type) -// { -// if (_methods == null) -// { -// _methods = new HashMap<String, List<IMethod>>(); -// final JDTBeanIntrospector introspector = new JDTBeanIntrospector(type); -// final IMethod[] methods = introspector.getAllMethods(); -// -// for (final IMethod method : methods) -// { -// List<IMethod> byName = _methods.get(method.getElementName()); -// if (byName == null) -// { -// byName = new ArrayList<IMethod>(); -// _methods.put(method.getElementName(), byName); -// } -// -// try { -// if (method.exists() -// && Flags.isPublic(method.getFlags())) -// { -// byName.add(method); -// } -// } catch (JavaModelException e) { -// JSFCorePlugin.log(e, "While getting flags on method: "+method.getElementName()); -// } -// } -// } -// return _methods; -// } - - } - - /** - * Checked exception the wraps problems thrown by JEM proxying into a single - * exception - * - */ - public static class ProxyException extends Exception - { - private static final long serialVersionUID = -1526057761795574331L; - - /** - * @param message - * @param cause - */ - public ProxyException(final String message, final Throwable cause) - { - super(message, cause); - } - - /** - * @param cause - */ - public ProxyException(final Throwable cause) - { - super(cause); - } - - } -} |