/*
* 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.brooklyn.core.entity.drivers.downloads;
import java.util.Map;
import org.apache.brooklyn.api.entity.drivers.downloads.DownloadResolverManager.DownloadRequirement;
import org.apache.brooklyn.api.entity.drivers.downloads.DownloadResolverManager.DownloadTargets;
import org.apache.brooklyn.core.entity.Attributes;
import com.google.common.base.Function;
import com.google.common.collect.Maps;
/**
* Retrieves the DOWNLOAD_URL or DOWNLOAD_ADDON_URLS attribute of a given entity, and performs the
* template substitutions to generate the download URL.
*
* @author aled
*/
public class DownloadProducerFromUrlAttribute extends DownloadSubstituters.Substituter implements Function<DownloadRequirement, DownloadTargets> {
public DownloadProducerFromUrlAttribute() {
super(
new Function<DownloadRequirement, String>() {
@Override public String apply(DownloadRequirement input) {
if (input.getAddonName() == null) {
return input.getEntityDriver().getEntity().getAttribute(Attributes.DOWNLOAD_URL);
} else {
String addon = input.getAddonName();
Map<String, String> addonUrls = input.getEntityDriver().getEntity().getAttribute(Attributes.DOWNLOAD_ADDON_URLS);
return (addonUrls != null) ? addonUrls.get(addon) : null;
}
}
},
new Function<DownloadRequirement, Map<String,?>>() {
@Override public Map<String,?> apply(DownloadRequirement input) {
Map<String,Object> result = Maps.newLinkedHashMap();
if (input.getAddonName() == null) {
result.putAll(DownloadSubstituters.getBasicEntitySubstitutions(input.getEntityDriver()));
} else {
result.putAll(DownloadSubstituters.getBasicAddonSubstitutions(input.getEntityDriver(), input.getAddonName()));
}
result.putAll(input.getProperties());
return result;
}
});
}
}