/**
* Licensed to jclouds, Inc. (jclouds) under one or more
* contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. jclouds 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.compute.predicates;
import java.util.Set;
import org.jclouds.compute.domain.OperatingSystem;
import com.google.common.base.Predicate;
import com.google.common.base.Predicates;
import com.google.common.collect.Sets;
/**
* Container for operating system filters (predicates).
*
* This class has static methods that create customized predicates to use with
* {@link org.jclouds.compute.ComputeService}.
*
* @author Adrian Cole
*/
public class OperatingSystemPredicates {
/**
* evaluates true if the OperatingSystem is unix like
*
*/
public static Predicate<OperatingSystem> isUnix() {
return new Predicate<OperatingSystem>() {
@Override
public boolean apply(OperatingSystem os) {
if (os.getFamily() != null) {
switch (os.getFamily()) {
case WINDOWS:
return false;
}
}
for (String toMatch : searchStrings(os))
if (toMatch != null && toMatch.toLowerCase().indexOf("windows") != -1)
return false;
return true;
}
@Override
public String toString() {
return "isUnix()";
}
};
}
/**
* evaluates true if the OperatingSystem supports the apt installer
*
*/
public static Predicate<OperatingSystem> supportsApt() {
return new Predicate<OperatingSystem>() {
@Override
public boolean apply(OperatingSystem os) {
if (os.getFamily() != null) {
switch (os.getFamily()) {
case DEBIAN:
case UBUNTU:
return true;
}
}
for (String toMatch : searchStrings(os))
if (toMatch != null && (toMatch.toLowerCase().indexOf("ubuntu") != -1
|| toMatch.toLowerCase().indexOf("debian") != -1))
return true;
return false;
}
@Override
public String toString() {
return "supportsApt()";
}
};
}
/**
* evaluates true if the OperatingSystem supports the yum installer
*
*/
public static Predicate<OperatingSystem> supportsYum() {
return new Predicate<OperatingSystem>() {
@Override
public boolean apply(OperatingSystem os) {
if (os.getFamily() != null) {
switch (os.getFamily()) {
case CENTOS:
case AMZN_LINUX:
case FEDORA:
case RHEL:
return true;
}
}
for (String toMatch : searchStrings(os))
if (toMatch.toLowerCase().indexOf("centos") != -1 || toMatch.toLowerCase().indexOf("rhel") != -1
|| toMatch.toLowerCase().replace(" ", "").indexOf("redhate") != -1
|| toMatch.toLowerCase().indexOf("fedora") != -1)
return true;
return false;
}
@Override
public String toString() {
return "supportsYum()";
}
};
}
/**
* evaluates true if the OperatingSystem supports the zypper installer
*
*/
public static Predicate<OperatingSystem> supportsZypper() {
return new Predicate<OperatingSystem>() {
@Override
public boolean apply(OperatingSystem os) {
if (os.getFamily() != null) {
switch (os.getFamily()) {
case SUSE:
return true;
}
}
for (String toMatch : searchStrings(os))
if (toMatch != null && toMatch.toLowerCase().indexOf("suse") != -1)
return true;
return false;
}
@Override
public String toString() {
return "supportsZypper()";
}
};
}
/**
* return everything.
*/
public static Predicate<OperatingSystem> any() {
return Predicates.<OperatingSystem> alwaysTrue();
}
/**
* return true if this is a 64bit os.
*/
public static Predicate<OperatingSystem> is64Bit() {
return new Predicate<OperatingSystem>() {
@Override
public boolean apply(OperatingSystem os) {
return os.is64Bit();
}
@Override
public String toString() {
return "is64Bit()";
}
};
}
static Iterable<String> searchStrings(OperatingSystem os) {
Set<String> search = Sets.newLinkedHashSet();
if (os.getName() != null)
search.add(os.getName());
if (os.getDescription() != null)
search.add(os.getDescription());
return search;
}
}