| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more contributor license |
| * agreements. See the NOTICE file distributed with this work for additional information regarding |
| * copyright ownership. The ASF licenses this file to You 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.geode.cache.query.internal.index; |
| |
| import java.util.List; |
| |
| import org.apache.geode.cache.Region; |
| import org.apache.geode.cache.query.IndexInvalidException; |
| import org.apache.geode.cache.query.internal.CompiledIteratorDef; |
| import org.apache.geode.cache.query.internal.CompiledValue; |
| import org.apache.geode.cache.query.internal.ExecutionContext; |
| import org.apache.geode.cache.query.internal.RuntimeIterator; |
| import org.apache.geode.cache.query.internal.parse.OQLLexerTokenTypes; |
| import org.apache.geode.internal.cache.InternalCache; |
| import org.apache.geode.internal.cache.PartitionedRegion; |
| |
| public class PrimaryKeyIndexCreationHelper extends IndexCreationHelper { |
| |
| ExecutionContext context = null; |
| |
| final Region region; |
| |
| public PrimaryKeyIndexCreationHelper(String fromClause, String indexedExpression, |
| String projectionAttributes, InternalCache cache, ExecutionContext externalContext, |
| IndexManager imgr) throws IndexInvalidException { |
| super(fromClause, projectionAttributes, cache); |
| if (externalContext == null) { |
| context = new ExecutionContext(null, cache); |
| } else { |
| this.context = externalContext; |
| } |
| context.newScope(1); |
| this.region = imgr.region; |
| prepareFromClause(imgr); |
| prepareIndexExpression(indexedExpression); |
| prepareProjectionAttributes(projectionAttributes); |
| } |
| |
| private void prepareFromClause(IndexManager imgr) throws IndexInvalidException { |
| List list = this.compiler.compileFromClause(fromClause); |
| if (list.size() > 1) { |
| throw new IndexInvalidException( |
| "The fromClause for a Primary Key index should only have one iterator and the collection must be a Region Path only"); |
| } |
| try { |
| CompiledIteratorDef iterDef = (CompiledIteratorDef) list.get(0); |
| if (iterDef.getCollectionExpr().getType() != OQLLexerTokenTypes.RegionPath) { |
| throw new IndexInvalidException( |
| "The fromClause for a Primary Key index should be a Region Path only"); |
| } |
| iterDef.computeDependencies(this.context); |
| RuntimeIterator rIter = (iterDef.getRuntimeIterator(this.context)); |
| String definition = rIter.getDefinition(); |
| this.canonicalizedIteratorDefinitions = new String[1]; |
| this.canonicalizedIteratorDefinitions[0] = definition; |
| // Bind the Index_Internal_ID to the RuntimeIterator |
| PartitionedRegion pr = this.context.getPartitionedRegion(); |
| this.canonicalizedIteratorNames = new String[1]; |
| String name = null; |
| if (pr != null) { |
| name = pr.getIndexManager().putCanonicalizedIteratorNameIfAbsent(definition); |
| } else { |
| name = imgr.putCanonicalizedIteratorNameIfAbsent(definition); |
| } |
| rIter.setIndexInternalID(name); |
| this.canonicalizedIteratorNames = new String[1]; |
| this.canonicalizedIteratorNames[0] = name; |
| this.fromClause = new StringBuilder(definition).append(' ').append(name).toString(); |
| context.bindIterator(rIter); |
| } catch (IndexInvalidException e) { |
| throw e; // propagate |
| } catch (Exception e) { |
| throw new IndexInvalidException(e); // wrap any other exceptions |
| } |
| } |
| |
| private void prepareIndexExpression(String indexedExpression) throws IndexInvalidException { |
| List indexedExprs = this.compiler.compileProjectionAttributes(indexedExpression); |
| if (indexedExprs == null || indexedExprs.size() != 1) { |
| throw new IndexInvalidException( |
| String.format("Invalid indexed expressoion : ' %s '", |
| indexedExpression)); |
| } |
| CompiledValue expr = (CompiledValue) ((Object[]) indexedExprs.get(0))[1]; |
| if (expr.getType() == CompiledValue.LITERAL) |
| throw new IndexInvalidException( |
| String.format("Invalid indexed expressoion : ' %s '", |
| indexedExpression)); |
| try { |
| StringBuilder sb = new StringBuilder(); |
| expr.generateCanonicalizedExpression(sb, context); |
| this.indexedExpression = sb.toString(); |
| } catch (Exception e) { |
| throw new IndexInvalidException( |
| String.format("Invalid indexed expressoion : ' %s ' %s", |
| new Object[] {indexedExpression, e.getMessage()})); |
| } |
| } |
| |
| private void prepareProjectionAttributes(String projectionAttributes) |
| throws IndexInvalidException { |
| if (projectionAttributes != null && !projectionAttributes.equals("*")) { |
| throw new IndexInvalidException( |
| String.format("Invalid projection attributes : ' %s '", |
| projectionAttributes)); |
| } |
| this.projectionAttributes = projectionAttributes; |
| } |
| |
| @Override |
| public Region getRegion() { |
| return region; |
| } |
| |
| @Override |
| public List getIterators() { |
| return null; |
| } |
| |
| @Override |
| public CompiledValue getCompiledIndexedExpression() { |
| return null; |
| } |
| |
| } |