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Diffstat (limited to 'jsf/plugins/org.eclipse.jst.jsf.common/src/org/eclipse/jst/jsf/common/metadata/query/internal/SimpleEntityQueryVisitorImpl.java')
| -rw-r--r-- | jsf/plugins/org.eclipse.jst.jsf.common/src/org/eclipse/jst/jsf/common/metadata/query/internal/SimpleEntityQueryVisitorImpl.java | 205 |
1 files changed, 0 insertions, 205 deletions
diff --git a/jsf/plugins/org.eclipse.jst.jsf.common/src/org/eclipse/jst/jsf/common/metadata/query/internal/SimpleEntityQueryVisitorImpl.java b/jsf/plugins/org.eclipse.jst.jsf.common/src/org/eclipse/jst/jsf/common/metadata/query/internal/SimpleEntityQueryVisitorImpl.java deleted file mode 100644 index ea68a0140..000000000 --- a/jsf/plugins/org.eclipse.jst.jsf.common/src/org/eclipse/jst/jsf/common/metadata/query/internal/SimpleEntityQueryVisitorImpl.java +++ /dev/null @@ -1,205 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2007 Oracle Corporation. - * 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 - initial API and implementation - * - ********************************************************************************/ -package org.eclipse.jst.jsf.common.metadata.query.internal; - -import java.util.ArrayList; -import java.util.List; -import java.util.StringTokenizer; - -import org.eclipse.jst.jsf.common.metadata.Entity; -import org.eclipse.jst.jsf.common.metadata.query.AbstractEntityQueryVisitor; -import org.eclipse.jst.jsf.common.metadata.query.IResultSet; - - -/** - * A simple metadata query visitor implementing {@link org.eclipse.jst.jsf.common.metadata.query.IEntityQueryVisitor} and {@link org.eclipse.jst.jsf.common.metadata.query.ITraitQueryVisitor}.<p> - * - simple find entity and traits by id only <br> - * - does not allow for wild card searchs<br> - * <p> - * TODO - fix for case-sensitivity https://bugs.eclipse.org/bugs/show_bug.cgi?id=212794 - * - */ -public class SimpleEntityQueryVisitorImpl extends AbstractEntityQueryVisitor implements IHierarchicalEntityVisitor { - private HierarchicalSearchControl control; - private boolean _stop; - - private EntityQueryFilterVisitor entityQuery; - private List/*<Entity>*/ _entityResults; - private Entity initialEntityContext; - - /** - * Constructor that also creates a default SearchControl - */ - public SimpleEntityQueryVisitorImpl() { - super(); - control = new HierarchicalSearchControl(); - } - - /** - * Constructor - * @param control - */ - public SimpleEntityQueryVisitorImpl(final HierarchicalSearchControl control) { - super(); - this.control = control; - } - - /* (non-Javadoc) - * @see org.eclipse.jst.jsf.common.metadata.query.IEntityQueryVisitor#findEntities(org.eclipse.jst.jsf.common.metadata.Entity, java.lang.String) - */ - public IResultSet/*<Entity>*/ findEntities(final Entity initialEntity, - final String entityKey) { - - resetQuery(); - - if (initialEntity != null){ - this.initialEntityContext = initialEntity; - entityQuery = new EntityQueryFilterVisitor(initialEntity.getId(), entityKey); - initialEntity.accept(this); - } - - return new SimpleResultSet(getInternalEntityResults()); - } - - private void resetQuery() { - _stop = false; - _entityResults = null; - } - - private List/*<Entity>*/ getInternalEntityResults(){ - if (_entityResults == null){ - _entityResults = new ArrayList/*<Entity>*/(); - } - return _entityResults; - } - - - public boolean visitEnter(final Entity entity) { - - if (entity == initialEntityContext) - return true; - - entityQuery.pushLevel(); - if (entityQuery.canVisit(entity)) - return entityQuery.visit(entity); - - return false; - } - - public boolean visitLeave(Entity entity) { - checkShouldStopVisitingEntities(); - if (entity != initialEntityContext) - entityQuery.popLevel(); - return true; - } - - /* (non-Javadoc) - * @see org.eclipse.jst.jsf.common.metadata.query.IEntityVisitor#visit(org.eclipse.jst.jsf.common.metadata.Entity) - */ - public void visit(final Entity key) { - //do nothing... all work now done in visitEnter/visitLeave - } - - /* (non-Javadoc) - * @see org.eclipse.jst.jsf.common.metadata.query.IMetaDataVisitor#stopVisiting() - */ - public boolean stopVisiting() { - return _stop; - } - - private void checkShouldStopVisitingEntities(){ - //implement how to set stop to signal to the entity accept() to skip visiting - if (_stop == false - && control.getCountLimit()== getInternalEntityResults().size() - && control.getCountLimit() != SearchControl.COUNT_LIMIT_NONE ) - - _stop = true; - } - - /** - * Visitor that filters and acts upon hierarchical data that compares that an entity's id for with another with case-insensitive compare - */ - private class EntityQueryFilterVisitor { - - private String entityId; - private List<String> entityQueue; - private int curLevel = 0; - - /** - * Constructor - * @param initialContextId - Entity id from which the query is rooted - * @param queryKey - query key which may be compound ("A/B/C") - */ - public EntityQueryFilterVisitor(final String initialContextId, final String queryKey){ - init(initialContextId, queryKey); - } - - private void init(final String initialContextId, final String key) { - entityQueue = new ArrayList<String>(3); - addLevel(initialContextId); - if (key == null || key.trim().equals("") || key.trim().equals("/")){ //$NON-NLS-1$ //$NON-NLS-2$ - addLevel(""); //$NON-NLS-1$ - } - else { - final StringTokenizer st = new StringTokenizer(key, "/"); //$NON-NLS-1$ - String partialKey = st.nextToken(); - addLevel(partialKey); - while (st.hasMoreElements()){ - partialKey = st.nextToken(); - addLevel(partialKey); - } - } - } - - /** - * @param entity - * @return flag indicating that filter was passed and children may be visited - */ - public boolean canVisit(final Entity entity) { - // only one filter rule... does this entity id match the current level's entity id (case-insensitive) - return entityId.compareTo(entity.getId().toUpperCase()) == 0; - } - - /** - * Operates on passed entity and determines if it should be part of the query results - * @param entity - * @return true if children of entity should be visited - */ - public boolean visit(final Entity entity) { - //one operation... if we have found the leaf-most entity in the query, add it to the results and go no deeper - if (curLevel == entityQueue.size() - 1) { - getInternalEntityResults().add(entity); - return false; - } - return true; - } - - private void addLevel(final String key) { - entityQueue.add(key.toUpperCase()); - } - - /** - * Move up one level in the query - */ - public void popLevel(){ - entityId = entityQueue.get(--curLevel); - } - - /** - * Move down one level in the query - */ - public void pushLevel() { - entityId = entityQueue.get(++curLevel); - } - } - -} |