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/*******************************************************************************
* Copyright (c) 2012 Wind River Systems, Inc. and others. All rights reserved.
* This program and the accompanying materials are made available under the terms
* of the Eclipse Public License v1.0 which accompanies this distribution, and is
* available at http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Wind River Systems - initial API and implementation
*******************************************************************************/
package org.eclipse.tcf.te.tests.tcf;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.atomic.AtomicReference;
import org.eclipse.core.runtime.IPath;
import org.eclipse.tcf.core.TransientPeer;
import org.eclipse.tcf.protocol.IPeer;
import org.eclipse.tcf.protocol.JSON;
import org.eclipse.tcf.protocol.Protocol;
import org.eclipse.tcf.te.runtime.model.factory.Factory;
import org.eclipse.tcf.te.runtime.utils.Host;
import org.eclipse.tcf.te.runtime.utils.net.IPAddressUtil;
import org.eclipse.tcf.te.tcf.locator.interfaces.nodes.ILocatorModel;
import org.eclipse.tcf.te.tcf.locator.interfaces.nodes.IPeerModel;
import org.eclipse.tcf.te.tcf.locator.interfaces.services.ILocatorModelLookupService;
import org.eclipse.tcf.te.tcf.locator.model.Model;
import org.eclipse.tcf.te.tests.CoreTestCase;
/**
* TCF test case implementation.
* <p>
* Launches a TCF agent at local host and make it available for a test case.
*/
public class TcfTestCase extends CoreTestCase {
// The agent launcher instance
private AgentLauncher launcher;
// The peer instance
protected IPeer peer;
// The peer model instance
protected IPeerModel peerModel;
/* (non-Javadoc)
* @see org.eclipse.tcf.te.tests.CoreTestCase#setUp()
*/
@Override
protected void setUp() throws Exception {
super.setUp();
launchAgent();
}
/* (non-Javadoc)
* @see org.eclipse.tcf.te.tests.CoreTestCase#tearDown()
*/
@Override
protected void tearDown() throws Exception {
if (launcher != null) launcher.dispose();
peer = null;
peerModel = null;
super.tearDown();
}
/**
* Launches a TCF agent at local host.
*/
protected void launchAgent() {
// Get the agent location
IPath path = getAgentLocation();
assertNotNull("Cannot determine TCF agent location.", path); //$NON-NLS-1$
// Add the agent executable name
path = path.append("agent"); //$NON-NLS-1$
if (Host.isWindowsHost()) path = path.addFileExtension("exe"); //$NON-NLS-1$
assertTrue("Invalid agent location: " + path.toString(), path.toFile().isFile()); //$NON-NLS-1$
Throwable error = null;
String message = null;
// If the agent is not marked executable on Linux, we have to change that
if (Host.isLinuxHost() && !path.toFile().canExecute()) {
try {
Runtime.getRuntime().exec(new String[] { "chmod", "u+x", path.toString() }); //$NON-NLS-1$ //$NON-NLS-2$
} catch (IOException e) {
error = e;
message = e.getLocalizedMessage();
}
}
assertNull("Failed to make the agent executable for the current user.", message); //$NON-NLS-1$
error = null;
message = null;
assertTrue("Agent should be executable but is not.", path.toFile().canExecute()); //$NON-NLS-1$
// Create the agent launcher
launcher = new AgentLauncher(path);
try {
launcher.launch();
} catch (Throwable e) {
error = e;
message = e.getLocalizedMessage();
}
assertNull("Failed to launch agent: " + message, error); //$NON-NLS-1$
error = null;
message = null;
assertNotNull("Process handle not associated with launcher.", launcher.getProcess()); //$NON-NLS-1$
assertNotNull("Process output reader not associated with launcher.", launcher.getOutputReader()); //$NON-NLS-1$
Process process = launcher.getProcess();
int exitCode = -1;
try {
exitCode = process.exitValue();
} catch (IllegalThreadStateException e) {
error = e;
message = e.getLocalizedMessage();
}
assertNotNull("Agent process died with exit code " + exitCode, error); //$NON-NLS-1$
error = null;
message = null;
// The agent is started with "-S" to write out the peer attributes in JSON format.
String output = null;
int counter = 10;
while (counter > 0 && output == null) {
// Try to read in the output
output = launcher.getOutputReader().getOutput();
if ("".equals(output)) { //$NON-NLS-1$
output = null;
waitAndDispatch(200);
}
counter--;
}
assertNotNull("Failed to read output from agent.", output); //$NON-NLS-1$
// Strip away "Server-Properties:"
output = output.replace("Server-Properties:", " "); //$NON-NLS-1$ //$NON-NLS-2$
output = output.trim();
// Read into an object
Object object = parseOne(output);
@SuppressWarnings("unchecked")
final Map<String, String> attrs = new HashMap<String, String>((Map<String, String>)object);
// Lookup the corresponding peer object
final ILocatorModel model = Model.getModel();
assertNotNull("Failed to access locator model instance.", model); //$NON-NLS-1$
// The expected peer id is "<transport>:<canonical IP>:<port>"
String transport = attrs.get(IPeer.ATTR_TRANSPORT_NAME);
assertNotNull("Unexpected return value 'null'.", transport); //$NON-NLS-1$
String port = attrs.get(IPeer.ATTR_IP_PORT);
assertNotNull("Unexpected return value 'null'.", port); //$NON-NLS-1$
String ip = IPAddressUtil.getInstance().getIPv4LoopbackAddress();
assertNotNull("Unexpected return value 'null'.", ip); //$NON-NLS-1$
final String id = transport + ":" + ip + ":" + port; //$NON-NLS-1$ //$NON-NLS-2$
final AtomicReference<IPeerModel> node = new AtomicReference<IPeerModel>();
Runnable runnable = new Runnable() {
@Override
public void run() {
node.set(model.getService(ILocatorModelLookupService.class).lkupPeerModelById(id));
// If the peer model is not found by id, try the agent id as fallback.
if (node.get() == null) {
String agentID = attrs.get(IPeer.ATTR_AGENT_ID);
assertNotNull("Unexpected return value 'null'.", agentID); //$NON-NLS-1$
IPeerModel[] candidates = model.getService(ILocatorModelLookupService.class).lkupPeerModelByAgentId(agentID);
if (candidates != null && candidates.length > 0) node.set(candidates[0]);
}
}
};
assertFalse("Test is running in TCF dispatch thread.", Protocol.isDispatchThread()); //$NON-NLS-1$
Protocol.invokeAndWait(runnable);
// If the peer model is still not found, we create a transient peer
if (node.get() == null) {
attrs.put(IPeer.ATTR_ID, id);
attrs.put(IPeer.ATTR_IP_HOST, ip);
peer = new TransientPeer(attrs);
peerModel = Factory.getInstance().newInstance(IPeerModel.class, new Object[] { model, peer });
} else {
peerModel = node.get();
peer = peerModel.getPeer();
}
assertNotNull("Failed to determine the peer to use for the tests.", peer); //$NON-NLS-1$
}
/**
* Returns the agent location.
*
* @return The agent location or <code>null</code> if not found.
*/
protected IPath getAgentLocation() {
return getDataLocation("agent", true, true); //$NON-NLS-1$
}
/**
* Parses a object from the given encoded string.
*
* @param encoded The encoded string. Must not be <code>null</code>.
* @return The object
*/
private static Object parseOne(final String encoded) {
assertNotNull(encoded);
final AtomicReference<Object> object = new AtomicReference<Object>();
final AtomicReference<String> message = new AtomicReference<String>();
final AtomicReference<Throwable> error = new AtomicReference<Throwable>();
Runnable runnable = new Runnable() {
@Override
public void run() {
try {
object.set(JSON.parseOne(encoded.getBytes("UTF-8"))); //$NON-NLS-1$
} catch (IOException e) {
error.set(e);
message.set(e.getLocalizedMessage());
}
}
};
assertFalse("Test is running in TCF dispatch thread.", Protocol.isDispatchThread()); //$NON-NLS-1$
Protocol.invokeAndWait(runnable);
assertNull("Failed to parse server properties: " + message.get(), error.get()); //$NON-NLS-1$
assertTrue("Server properties object is not of expected type Map.", object.get() instanceof Map); //$NON-NLS-1$
return object.get();
}
}
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