| /* 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.jam_old.internal; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.List; |
| |
| import org.apache.xmlbeans.impl.jam_old.*; |
| |
| /** |
| * Base class for implementing interfaces which implement JElement. |
| * |
| * @author Patrick Calahan <pcal@bea.com> |
| */ |
| public abstract class BaseJElement implements JElement { |
| |
| // ======================================================================== |
| // Constants |
| |
| // help reduce object waste |
| public static final JElement[] NO_NODE = new JElement[0]; |
| public static final JClass[] NO_CLASS = new JClass[0]; |
| public static final JField[] NO_FIELD = new JField[0]; |
| public static final JConstructor[] NO_CONSTRUCTOR = new JConstructor[0]; |
| public static final JMethod[] NO_METHOD = new JMethod[0]; |
| public static final JParameter[] NO_PARAMETER = new JParameter[0]; |
| public static final JPackage[] NO_PACKAGE = new JPackage[0]; |
| public static final JAnnotation[] NO_ANNOTATION = new JAnnotation[0]; |
| |
| public static final JComment[] NO_COMMENT = new JComment[0]; |
| public static final JProperty[] NO_PROPERTY = new JProperty[0]; |
| |
| private static final String ANNOTATION_SEPARATOR = "@"; |
| |
| // ======================================================================== |
| // Variables |
| |
| private JAnnotation[] mAnns = null; |
| private JComment[] mComments = null; |
| private List mTempList = null; |
| |
| //FIXME this is a really gross quick hack to get this stuff working. |
| //we should be getting this from our classloader. |
| private JAnnotationLoader mExternalAnnotations = null; |
| |
| // ======================================================================== |
| // Constructors |
| |
| protected BaseJElement() { |
| } |
| |
| private List getTempList() { |
| return new ArrayList(); |
| /* |
| if (mTempList == null) { |
| mTempList = new ArrayList(); |
| } else { |
| mTempList.clear(); |
| } |
| return mTempList; |
| */ |
| } |
| |
| /** |
| * @deprecated this is a quick hack, please remove |
| */ |
| public void setAnnotationLoader(JAnnotationLoader l) { |
| mExternalAnnotations = l; |
| } |
| |
| // ======================================================================== |
| // JAnnotation implementation |
| |
| /** |
| * NOTE TO IMPLEMENTORS: you really should not override this method; override |
| * getLocalAnnotations instead!!! This method takes responsibility for |
| * returning the union of the localAnnotations and the annotations provided |
| * by any external JAnnotationLoader; if you override this method yourself, |
| * your impl will not support external annotations. |
| * |
| * @return |
| */ |
| public /*final*/ JAnnotation[] getAnnotations() { |
| if (true || mAnns == null) { //FIXME always do this until we fixing JAnnotationLoader thing |
| List list = getTempList(); |
| if (mExternalAnnotations != null) { |
| mExternalAnnotations.getAnnotations(this,list); |
| } |
| getLocalAnnotations(list); |
| if (list.size() == 0) { |
| mAnns = NO_ANNOTATION; |
| } else { |
| mAnns = new JAnnotation[list.size()]; |
| list.toArray(mAnns); |
| } |
| } |
| return mAnns; // FIXME do we need to return a copy? |
| } |
| |
| public final JAnnotation[] getAnnotations(String named) { |
| List list = getTempList(); |
| gatherAnnotations(named, list); |
| JAnnotation[] out = new JAnnotation[list.size()]; |
| list.toArray(out); |
| return out; |
| } |
| |
| |
| public final JAnnotation getAnnotation(String named) { |
| JAnnotation[] anns = getAnnotations(named); |
| return (anns.length == 0) ? null : anns[0]; |
| } |
| |
| public JComment getComment() { |
| JComment[] out = getComments(); |
| if (out.length == 0) return null; |
| return out[0]; |
| } |
| |
| public Object getArtifact() { return null; } |
| |
| // ======================================================================== |
| // Object implementation |
| |
| public String toString() { |
| return getQualifiedName(); |
| } |
| |
| // ======================================================================== |
| // Methods to be implemented by subclasses |
| |
| /** |
| * Extending class must implement this by adding all of the |
| * annotations which apply to this object to the given 'out' |
| * collection. Implement as a no-op if annotations are not |
| * applicable. |
| */ |
| protected abstract void getLocalAnnotations(Collection out); |
| |
| /** |
| * Extending class must implement this by adding all of the |
| * annotations which apply to this object to the given 'out' |
| * collection. Implement as a no-op if comments are not applicable. |
| */ |
| protected abstract void getLocalComments(Collection out); |
| |
| // ======================================================================== |
| // Private methods |
| |
| private void gatherAnnotations(String fullName, Collection out) { |
| JAnnotation[] anns = getAnnotations(); |
| if (anns == NO_ANNOTATION) return; |
| int dot = fullName.indexOf(ANNOTATION_SEPARATOR); |
| String subname = (dot == -1) ? fullName : fullName.substring(0, dot); |
| String postfix = (dot == -1 || dot == fullName.length() - 1) ? |
| null : fullName.substring(dot + 1); |
| // System.out.println("===== "+subname+" "+postfix); |
| for (int i = 0; i < anns.length; i++) { |
| if (anns[i].getName().equals(subname)) { |
| if (postfix == null) { |
| out.add(anns[i]); |
| } else { |
| // REVIEW nasty cast. Alternative is to expose this method |
| // via a private interface, but that seems like overkill. |
| ((BaseJElement) anns[i]).gatherAnnotations(postfix, out); |
| } |
| } |
| } |
| } |
| |
| |
| // ======================================================================== |
| // Object implementation |
| |
| // REVIEW this needs more thought. |
| |
| public boolean equals(Object o) { |
| return (o instanceof JElement) && |
| getQualifiedName().equals(((JElement) o).getQualifiedName()); |
| } |
| |
| public int hashCode() { |
| return getQualifiedName().hashCode(); |
| } |
| |
| // ======================================================================== |
| // Deprecated method impls |
| |
| public final JComment[] getComments() { |
| if (mComments == null) { |
| List list = getTempList(); |
| getLocalComments(list); |
| /* if (mContext.getExtraMarkupStore() != null) { |
| mContext.getExtraMarkupStore().getComments(this,list); |
| }*/ |
| if (list.size() == 0) { |
| mComments = NO_COMMENT; |
| } else { |
| mComments = new JComment[list.size()]; |
| list.toArray(mComments); |
| } |
| } |
| return mComments; // FIXME do we need to return a copy? |
| } |
| |
| |
| } |