/*
* 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.jclouds.openstack.nova.v2_0.compute.functions;
import static com.google.common.base.Predicates.containsPattern;
import static com.google.common.base.Predicates.equalTo;
import static com.google.common.base.Predicates.not;
import static com.google.common.collect.Iterables.any;
import static com.google.common.collect.Iterables.filter;
import static com.google.common.collect.Iterables.find;
import java.util.Arrays;
import java.util.Map;
import java.util.NoSuchElementException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import javax.inject.Inject;
import javax.inject.Named;
import org.jclouds.compute.domain.OperatingSystem;
import org.jclouds.compute.domain.OsFamily;
import org.jclouds.compute.reference.ComputeServiceConstants;
import org.jclouds.compute.util.ComputeServiceUtils;
import org.jclouds.logging.Logger;
import org.jclouds.openstack.nova.v2_0.domain.Image;
import com.google.common.base.CharMatcher;
import com.google.common.base.Function;
import com.google.common.base.Objects;
import com.google.common.base.Predicate;
import com.google.common.base.Splitter;
/**
* A function for transforming a nova specific Image into a generic OperatingSystem object.
*
* @author Matt Stephenson
*/
public class ImageToOperatingSystem implements Function<Image, OperatingSystem> {
public static final Pattern DEFAULT_PATTERN = Pattern.compile("(([^ ]*) ([0-9.]+) ?.*)");
// Windows Server 2008 R2 x64
public static final Pattern WINDOWS_PATTERN = Pattern.compile("Windows (.*) (x[86][64])");
@javax.annotation.Resource
@Named(ComputeServiceConstants.COMPUTE_LOGGER)
protected Logger logger = Logger.NULL;
private final Map<OsFamily, Map<String, String>> osVersionMap;
@Inject
public ImageToOperatingSystem(Map<OsFamily, Map<String, String>> osVersionMap) {
this.osVersionMap = osVersionMap;
}
public OperatingSystem apply(final Image from) {
OsFamily osFamily = null;
String osVersion = null;
String imageName = Objects.firstNonNull(from.getName(), "unspecified");
boolean is64Bit = true;
if (imageName.indexOf("Windows") != -1) {
osFamily = OsFamily.WINDOWS;
Matcher matcher = WINDOWS_PATTERN.matcher(from.getName());
if (matcher.find()) {
osVersion = ComputeServiceUtils.parseVersionOrReturnEmptyString(osFamily, matcher.group(1), osVersionMap);
is64Bit = matcher.group(2).equals("x64");
}
} else {
if (imageName.contains("Red Hat EL")) {
osFamily = OsFamily.RHEL;
} else if (imageName.contains("Oracle EL")) {
osFamily = OsFamily.OEL;
} else {
final Iterable<String> imageNameParts = Splitter.on(CharMatcher.WHITESPACE).trimResults().split(
imageName.toLowerCase());
try {
osFamily = find(Arrays.asList(OsFamily.values()), new Predicate<OsFamily>() {
@Override
public boolean apply(OsFamily osFamily) {
return any(imageNameParts, equalTo(osFamily.name().toLowerCase()));
}
});
} catch (NoSuchElementException e) {
String ubuntuVersion = startsWithUbuntuVersion(imageNameParts);
if (ubuntuVersion != null) {
osFamily = OsFamily.UBUNTU;
osVersion = ubuntuVersion;
} else {
logger.trace("could not parse operating system family for image(%s): %s", from.getId(), imageNameParts);
osFamily = OsFamily.UNRECOGNIZED;
}
}
}
Matcher matcher = DEFAULT_PATTERN.matcher(imageName);
if (matcher.find() && matcher.groupCount() >= 3) {
osVersion = ComputeServiceUtils.parseVersionOrReturnEmptyString(osFamily, matcher.group(3), osVersionMap);
}
}
return new OperatingSystem(osFamily, imageName, osVersion, null, imageName, is64Bit);
}
String startsWithUbuntuVersion(final Iterable<String> imageNameParts) {
Map<String, String> ubuntuVersions = osVersionMap.get(OsFamily.UBUNTU);
for (String ubuntuKey : filter(ubuntuVersions.keySet(), not(equalTo("")))) {
if (any(imageNameParts, containsPattern("^" + ubuntuKey + ".*"))) {
return ubuntuVersions.get(ubuntuKey);
}
}
return null;
}
}