/*
* 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.List;
import javax.annotation.Nullable;
import org.apache.brooklyn.api.entity.drivers.downloads.DownloadResolverManager.DownloadRequirement;
import org.apache.brooklyn.api.entity.drivers.downloads.DownloadResolverManager.DownloadTargets;
import org.apache.brooklyn.util.text.Strings;
import com.google.common.base.Function;
public class FilenameProducers {
public static String inferFilename(String target) {
String result = target.substring(target.lastIndexOf("/")+1);
result = result.contains("?") ? result.substring(0, result.indexOf("?")) : result;
if (!result.contains("."))
// require a full stop, else assume it isn't a filename
return null;
return result;
}
public static Function<DownloadRequirement, String> fromFilenameProperty() {
return new Function<DownloadRequirement, String>() {
@Override public String apply(@Nullable DownloadRequirement req) {
Object filename = req.getProperties().get("filename");
return (filename != null) ? filename.toString() : null;
}
};
}
public static Function<DownloadRequirement, String> firstPrimaryTargetOf(final Function<DownloadRequirement, DownloadTargets> producer) {
return new Function<DownloadRequirement, String>() {
@Override public String apply(@Nullable DownloadRequirement req) {
DownloadTargets targets = producer.apply(req);
List<String> primaryTargets = targets.getPrimaryLocations();
for (String primaryTarget : primaryTargets) {
String result = inferFilename(primaryTarget);
if (!Strings.isBlank(result)) return result;
}
return null;
}
};
}
}