/*
* 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.karaf.bundle.command;
import org.apache.karaf.bundle.core.BundleInfo;
import org.apache.karaf.bundle.core.BundleService;
import org.apache.karaf.bundle.core.BundleState;
import org.apache.karaf.shell.api.action.Action;
import org.apache.karaf.shell.api.action.Command;
import org.apache.karaf.shell.api.action.Option;
import org.apache.karaf.shell.api.action.lifecycle.Reference;
import org.apache.karaf.shell.api.action.lifecycle.Service;
import org.apache.karaf.shell.support.table.ShellTable;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleContext;
import org.osgi.framework.startlevel.FrameworkStartLevel;
@Command(scope = "bundle", name = "list", description = "Lists all installed bundles.")
@Service
public class List extends BundlesCommand {
@Option(name = "-l", aliases = {}, description = "Show the locations", required = false, multiValued = false)
boolean showLocation;
@Option(name = "-s", description = "Shows the symbolic name", required = false, multiValued = false)
boolean showSymbolic;
@Option(name = "-u", description = "Shows the update locations", required = false, multiValued = false)
boolean showUpdate;
@Option(name = "-t", valueToShowInHelp = "", description = "Specifies the bundle threshold; bundles with a start-level less than this value will not get printed out.", required = false, multiValued = false)
int bundleLevelThreshold = -1;
@Option(name = "--no-format", description = "Disable table rendered output", required = false, multiValued = false)
boolean noFormat;
@Reference
BundleContext bundleContext;
@Reference
BundleService bundleService;
@Override
protected void executeOnBundle(Bundle bundle) throws Exception {
}
@Override
protected Object doExecute(java.util.List<Bundle> bundles) throws Exception {
determineBundleLevelThreshold();
// Display active start level.
FrameworkStartLevel fsl = this.bundleContext.getBundle(0).adapt(FrameworkStartLevel.class);
if (fsl != null) {
System.out.println("START LEVEL " + fsl.getStartLevel() + " , List Threshold: " + bundleLevelThreshold);
}
ShellTable table = new ShellTable();
table.column("ID").alignRight();
table.column("State");
table.column("Lvl").alignRight();
table.column("Version");
table.column(getNameHeader());
for (Bundle bundle : bundles) {
BundleInfo info = this.bundleService.getInfo(bundle);
if (info.getStartLevel() >= bundleLevelThreshold) {
String name = getNameToShow(info) + printFragments(info) + printHosts(info);
String version = info.getVersion();
table.addRow().addContent(info.getBundleId(), getStateString(info.getState()),
info.getStartLevel(), version, name);
}
}
table.print(System.out, !noFormat);
return null;
}
private String getNameHeader() {
String msg = "Name";
if (showLocation) {
msg = "Location";
} else if (showSymbolic) {
msg = "Symbolic name";
} else if (showUpdate) {
msg = "Update location";
}
return msg;
}
private void determineBundleLevelThreshold() {
if (bundleLevelThreshold < 0) {
bundleLevelThreshold = bundleService.getSystemBundleThreshold();
}
}
private String printHosts(BundleInfo info) {
if (info.getFragmentHosts().size() <= 0) {
return "";
}
StringBuilder builder = new StringBuilder();
builder.append(", Hosts: ");
boolean first = true;
for (Bundle host : info.getFragmentHosts()) {
builder.append((first ? "" : ", ") + host.getBundleId());
first = false;
}
return builder.toString();
}
private String printFragments(BundleInfo info) {
if (info.getFragments().size() <= 0) {
return "";
}
StringBuilder builder = new StringBuilder();
builder.append(", Fragments: ");
boolean first = true;
for (Bundle host : info.getFragments()) {
builder.append((first ? "" : ", ") + host.getBundleId());
first = false;
}
return builder.toString();
}
private String getStateString(BundleState state) {
return (state == null) ? "" : state.toString();
}
/**
* Overwrite the default value is the user specifically requested to display
* one or the other.
*
* @param info
* @return
*/
private String getNameToShow(BundleInfo info) {
if (showLocation) {
return info.getUpdateLocation();
} else if (showSymbolic) {
return info.getSymbolicName() == null ? "<no symbolic name>" : info.getSymbolicName();
} else if (showUpdate) {
return info.getUpdateLocation();
} else {
String name = (info.getName() == null) ? info.getSymbolicName() : info.getName();
return (name == null) ? info.getUpdateLocation() : name;
}
}
}