/*
* 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.simpleserver.config.impl;
import java.util.ArrayList;
import java.util.List;
import org.apache.uima.cas.Type;
import org.apache.uima.cas.TypeSystem;
import org.apache.uima.cas.impl.TypeSystemUtils;
import org.apache.uima.cas.impl.TypeSystemUtils.PathValid;
import org.apache.uima.simpleserver.SimpleServerException;
import org.apache.uima.simpleserver.config.AndFilter;
import org.apache.uima.simpleserver.config.Filter;
import org.apache.uima.simpleserver.config.OrFilter;
import org.apache.uima.simpleserver.config.Output;
import org.apache.uima.simpleserver.config.ServerSpec;
import org.apache.uima.simpleserver.config.SimpleFilter;
import org.apache.uima.simpleserver.config.TypeMap;
import org.apache.uima.simpleserver.config.Filter.FilterType;
/**
* Implementation of ServerSpec interface.
*/
public class ServerSpecImpl implements ServerSpec {
private final String shortDescription;
private final String longDescription;
private final boolean doOutputAll;
private final List<TypeMap> typeMaps = new ArrayList<TypeMap>();
public ServerSpecImpl(String shortDesc, String longDesc, boolean doOutputAll) {
super();
this.shortDescription = shortDesc;
this.longDescription = longDesc;
this.doOutputAll = doOutputAll;
}
public ServerSpecImpl(String shortDesc, String longDesc) {
// Default doOutputAll to false;
this(shortDesc, longDesc, false);
}
public void addTypeMap(TypeMap typeMap) {
this.typeMaps.add(typeMap);
}
public String getLongDescription() {
return this.longDescription;
}
public String getShortDescription() {
return this.shortDescription;
}
public List<TypeMap> getTypeSpecs() {
return this.typeMaps;
}
public List<SimpleServerException> validate(TypeSystem typeSystem) {
List<SimpleServerException> exc = new ArrayList<SimpleServerException>();
List<TypeMap> typeSpecs = this.getTypeSpecs();
for (TypeMap typeMap : typeSpecs) {
// Check that the type exists.
Type type = typeSystem.getType(typeMap.getTypeName());
if (type == null) {
exc.add(new SimpleServerException(SimpleServerException.type_does_not_exist,
new Object[] { typeMap.getTypeName() }));
continue;
}
// Now go through the filter and outputs and check each path for validity
Filter filter = typeMap.getFilter();
if (filter != null) {
checkFilter(filter, type, exc);
}
checkOutputs(typeMap.getOutputs(), type, exc);
}
return exc;
}
private static final void checkOutputs(List<Output> outputs, Type type,
List<SimpleServerException> exc) {
for (Output output : outputs) {
List<String> fPath = output.getFeaturePath();
if (TypeSystemUtils.isPathValid(type, fPath) == PathValid.NEVER) {
exc.add(new SimpleServerException(SimpleServerException.path_never_valid, new Object[] {
fPathToString(fPath), type }));
}
}
}
private static final void checkFilter(Filter filter, Type type, List<SimpleServerException> exc) {
FilterType filterType = filter.getFilterType();
switch (filterType) {
case AND: {
checkFilters(((AndFilter) filter).getFilters(), type, exc);
break;
}
case OR: {
checkFilters(((OrFilter) filter).getFilters(), type, exc);
break;
}
case SIMPLE: {
List<String> fPath = ((SimpleFilter) filter).getFeaturePath();
if (TypeSystemUtils.isPathValid(type, fPath) == PathValid.NEVER) {
exc.add(new SimpleServerException(SimpleServerException.path_never_valid, new Object[] {
fPathToString(fPath), type }));
}
break;
}
}
}
private static final String fPathToString(List<String> fPath) {
StringBuffer buf = new StringBuffer();
buf.append('/');
for (String f : fPath) {
buf.append(f);
buf.append('/');
}
return buf.toString();
}
private static final void checkFilters(List<Filter> filters, Type type,
List<SimpleServerException> exc) {
for (Filter filter : filters) {
checkFilter(filter, type, exc);
}
}
public boolean getOutputAll() {
return this.doOutputAll;
}
}