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/*
* 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.uima.cas.impl;
import java.util.HashSet;
import java.util.Set;
import org.apache.uima.cas.CASRuntimeException;
import org.apache.uima.cas.FSTypeConstraint;
import org.apache.uima.cas.FeatureStructure;
import org.apache.uima.cas.Type;
import org.apache.uima.cas.TypeSystem;
import org.apache.uima.internal.util.SortedIntSet;
/**
* An implementation of the type constraint interface.
*/
class FSTypeConstraintImpl implements FSTypeConstraint {
private static final long serialVersionUID = 7557683109761796280L;
private Set<String> nameSet = new HashSet<String>();
private transient SortedIntSet typeSet = new SortedIntSet();
private transient TypeSystem ts;
public boolean match(FeatureStructure fs) {
compile(((FeatureStructureImpl) fs).getCAS().getTypeSystem());
final FeatureStructureImpl fsi = (FeatureStructureImpl) fs;
final int typeCode = fsi.getCASImpl().getHeapValue(fsi.getAddress());
TypeSystemImpl tsi = (TypeSystemImpl) this.ts;
for (int i = 0; i < typeSet.size(); i++) {
if (tsi.subsumes(typeSet.get(i), typeCode)) {
return true;
}
}
return false;
}
private final void compile(TypeSystem ts1) {
if (ts == ts1) {
return;
}
ts = ts1;
TypeSystemImpl tsi = (TypeSystemImpl) ts1;
int typeCode;
for (String typeName : nameSet) {
typeCode = tsi.ll_getCodeForTypeName(typeName);
if (typeCode < tsi.getSmallestType()) {
CASRuntimeException e = new CASRuntimeException(
CASRuntimeException.UNKNOWN_CONSTRAINT_TYPE, new String[] { typeName });
throw e;
}
typeSet.add(typeCode);
}
}
public void add(Type type) {
this.ts = null; // This will force a recompile.
nameSet.add(type.getName());
}
public void add(String type) {
ts = null; // Will force recompile.
nameSet.add(type);
}
public String toString() {
StringBuilder buf = new StringBuilder();
buf.append("isa ( ");
boolean start = true;
for (String name : nameSet) {
if (start) {
start = false;
} else {
buf.append("| ");
}
buf.append(name);
buf.append(" ");
}
buf.append(")");
return buf.toString();
}
}