/*
* Copyright 2008-2009 SpringSource
*
* 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 com.springsource.bundlor.support.propertysubstitution;
import java.util.List;
import java.util.Properties;
import java.util.Map.Entry;
import com.springsource.bundlor.support.ManifestModifier;
import com.springsource.bundlor.support.ManifestTemplateModifier;
import com.springsource.bundlor.support.TemplateHeaderReader;
import com.springsource.util.common.PropertyPlaceholderResolver;
import com.springsource.util.common.PropertyPlaceholderResolver.PlaceholderValueTransformer;
import com.springsource.util.parser.manifest.ManifestContents;
/**
* An implementation of {@link ManifestTemplateModifier} that substitutes property values in for place holder values
* <p />
*
* <strong>Concurrent Semantics</strong><br />
*
* Threadsafe
*
* @author Ben Hale
*/
public final class PlaceholderManifestAndTemplateModifier implements ManifestModifier, ManifestTemplateModifier, TemplateHeaderReader {
private final Properties properties;
public PlaceholderManifestAndTemplateModifier(Properties properties) {
this.properties = properties;
}
public void modify(ManifestContents manifest) {
PlaceholderValueTransformer transformer = new VersionExpansionTransformer(manifest);
PropertyPlaceholderResolver placeholderResolver = new PropertyPlaceholderResolver();
for (Entry<String, String> entry : manifest.getMainAttributes().entrySet()) {
String key = entry.getKey();
String value = entry.getValue();
manifest.getMainAttributes().put(key, placeholderResolver.resolve(value, this.properties, transformer));
}
for(String name : manifest.getSectionNames()) {
for(Entry<String, String> entry : manifest.getAttributesForSection(name).entrySet()) {
String key = entry.getKey();
String value = entry.getValue();
manifest.getAttributesForSection(name).put(key, placeholderResolver.resolve(value, this.properties, transformer));
}
}
}
public List<String> getTemplateOnlyHeaderNames() {
return new VersionExpansionTransformer().getTemplateOnlyHeaderNames();
}
}