diff options
Diffstat (limited to 'tools/simple-wsclient/src/main/java')
4 files changed, 461 insertions, 0 deletions
diff --git a/tools/simple-wsclient/src/main/java/org/onap/policy/apex/tools/simple/wsclient/Application.java b/tools/simple-wsclient/src/main/java/org/onap/policy/apex/tools/simple/wsclient/Application.java new file mode 100644 index 000000000..bfd6573bc --- /dev/null +++ b/tools/simple-wsclient/src/main/java/org/onap/policy/apex/tools/simple/wsclient/Application.java @@ -0,0 +1,181 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed 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. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.apex.tools.simple.wsclient; + +import java.io.IOException; +import java.net.URISyntaxException; +import java.nio.channels.NotYetConnectedException; + +import org.apache.commons.cli.CommandLine; +import org.apache.commons.cli.HelpFormatter; +import org.apache.commons.lang3.Validate; +import org.onap.policy.apex.tools.common.CliOptions; +import org.onap.policy.apex.tools.common.CliParser; + +/** + * Simple console application with main method. + * + * @author Sven van der Meer (sven.van.der.meer@ericsson.com) + */ +public final class Application { + + /** + * Private constructor prevents subclassing. + */ + private Application() {} + + /** + * The main method for the WS applications. + * + * @param args command line argument s + */ + public static void main(final String[] args) { + String appName = "ws-simple-echo"; + String appDescr = "receives events from APEX via WS and prints them to standard out"; + boolean console = false; + + final CliParser cli = new CliParser(); + cli.addOption(CliOptions.HELP); + cli.addOption(CliOptions.VERSION); + cli.addOption(CliOptions.CONSOLE); + cli.addOption(CliOptions.SERVER); + cli.addOption(CliOptions.PORT); + + final CommandLine cmd = cli.parseCli(args); + + if (cmd.hasOption('c') || cmd.hasOption("console")) { + appName = "ws-simple-console"; + appDescr = "takes events from stdin and sends via WS to APEX"; + console = true; + } + + // help is an exit option, print usage and exit + if (cmd.hasOption('h') || cmd.hasOption("help")) { + final HelpFormatter formatter = new HelpFormatter(); + System.out.println(appName + " v" + cli.getAppVersion() + " - " + appDescr); + formatter.printHelp(appName, cli.getOptions()); + System.out.println(); + return; + } + + // version is an exit option, print version and exit + if (cmd.hasOption('v') || cmd.hasOption("version")) { + System.out.println(appName + " " + cli.getAppVersion()); + System.out.println(); + return; + } + + String server = cmd.getOptionValue('s'); + if (server == null) { + server = cmd.getOptionValue("server"); + } + if (server == null) { + server = "localhost"; + } + + String port = cmd.getOptionValue('p'); + if (port == null) { + port = cmd.getOptionValue("port"); + } + if (port == null) { + port = "8887"; + } + + if (console) { + runConsole(server, port, appName); + } else { + runEcho(server, port, appName); + } + + } + + /** + * Runs the simple echo client. + * + * @param server the server, must not be blank + * @param port the port, must not be blank + * @param appName the application name, must not be blank + */ + public static void runEcho(final String server, final String port, final String appName) { + Validate.notBlank(server); + Validate.notBlank(port); + Validate.notBlank(appName); + + System.out.println(); + System.out.println(appName + ": starting simple event echo"); + System.out.println(" --> server: " + server); + System.out.println(" --> port: " + port); + System.out.println(); + System.out.println("Once started, the application will simply print out all received events to standard out."); + System.out.println("Each received event will be prefixed by '---' and suffixed by '===='"); + System.out.println(); + System.out.println(); + + try { + final SimpleEcho simpleEcho = new SimpleEcho(server, port, appName); + simpleEcho.connect(); + } catch (final URISyntaxException uex) { + System.err.println(appName + ": URI exception, could not create URI from server and port settings"); + } catch (final NullPointerException nex) { + System.err.println(appName + ": null pointer, server or port were null"); + } catch (final IllegalArgumentException iex) { + System.err.println(appName + ": illegal argument, server or port were blank"); + } + } + + /** + * Runs the simple console. + * + * @param server the server, must not be blank + * @param port the port, must not be blank + * @param appName the application name, must not be blank + */ + public static void runConsole(final String server, final String port, final String appName) { + Validate.notBlank(server); + Validate.notBlank(port); + Validate.notBlank(appName); + + System.out.println(); + System.out.println(appName + ": starting simple event console"); + System.out.println(" --> server: " + server); + System.out.println(" --> port: " + port); + System.out.println(); + System.out.println(" - terminate the application typing 'exit<enter>' or using 'CTRL+C'"); + System.out.println(" - events are created by a non-blank starting line and terminated by a blank line"); + System.out.println(); + System.out.println(); + + try { + final SimpleConsole simpleConsole = new SimpleConsole(server, port, appName); + simpleConsole.runClient(); + } catch (final URISyntaxException uex) { + System.err.println(appName + ": URI exception, could not create URI from server and port settings"); + } catch (final NullPointerException nex) { + System.err.println(appName + ": null pointer, server or port were null"); + } catch (final IllegalArgumentException iex) { + System.err.println(appName + ": illegal argument, server or port were blank"); + } catch (final NotYetConnectedException nex) { + System.err.println(appName + ": not yet connected, connection to server took too long"); + } catch (final IOException ioe) { + System.err.println(appName + ": IO exception, something went wrong on the standard input"); + } + } +} diff --git a/tools/simple-wsclient/src/main/java/org/onap/policy/apex/tools/simple/wsclient/SimpleConsole.java b/tools/simple-wsclient/src/main/java/org/onap/policy/apex/tools/simple/wsclient/SimpleConsole.java new file mode 100644 index 000000000..810c74da5 --- /dev/null +++ b/tools/simple-wsclient/src/main/java/org/onap/policy/apex/tools/simple/wsclient/SimpleConsole.java @@ -0,0 +1,145 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed 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. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.apex.tools.simple.wsclient; + +import java.io.BufferedReader; +import java.io.IOException; +import java.io.InputStreamReader; +import java.net.URI; +import java.net.URISyntaxException; +import java.nio.channels.NotYetConnectedException; + +import org.apache.commons.lang3.Validate; +import org.java_websocket.client.WebSocketClient; +import org.java_websocket.framing.CloseFrame; +import org.java_websocket.handshake.ServerHandshake; + +/** + * Simple WS client with a console for events. + * + * @author Sven van der Meer (sven.van.der.meer@ericsson.com) + */ +public class SimpleConsole extends WebSocketClient { + + /** Application name, used as prompt. */ + private final String appName; + + /** + * Creates a new simple echo object. + * + * @param server the name of the server as either IP address or fully qualified host name, must not be blank + * @param port the port to be used, must not be blank + * @param appName the application name, used as prompt, must not be blank + * @throws URISyntaxException is URI could not be created from server/port settings + * @throws RuntimeException if server or port where blank + */ + public SimpleConsole(final String server, final String port, final String appName) throws URISyntaxException { + super(new URI("ws://" + server + ":" + port)); + Validate.notBlank(appName, "SimpleConsole: given application name was blank"); + this.appName = appName; + } + + @Override + public void onClose(final int code, final String reason, final boolean remote) { + System.out.println(this.appName + ": Connection closed by " + (remote ? "APEX" : "me")); + System.out.print(" ==-->> "); + switch (code) { + case CloseFrame.NORMAL: + System.out.println("normal"); + break; + case CloseFrame.GOING_AWAY: + System.out.println("APEX going away"); + break; + case CloseFrame.PROTOCOL_ERROR: + System.out.println("some protocol error"); + break; + case CloseFrame.REFUSE: + System.out.println("received unacceptable type of data"); + break; + case CloseFrame.NO_UTF8: + System.out.println("expected UTF-8, found something else"); + break; + case CloseFrame.TOOBIG: + System.out.println("message too big"); + break; + case CloseFrame.UNEXPECTED_CONDITION: + System.out.println("unexpected server condition"); + break; + default: + System.out.println("unkown close frame code"); + break; + } + System.out.print(" ==-->> " + reason); + } + + @Override + public void onError(final Exception ex) { + System.err.println(this.appName + ": " + ex.getMessage()); + } + + @Override + public void onMessage(final String message) { + // this client does not expect messages + } + + @Override + public void onOpen(final ServerHandshake handshakedata) { + System.out.println(this.appName + ": opened connection to APEX (" + handshakedata.getHttpStatusMessage() + ")"); + } + + /** + * Runs the console client. In particular, it starts a new thread for the Websocket connection and then reads from + * standard input. + * + * @throws NotYetConnectedException if not connected to server when sending events + * @throws IOException on an IO problem on standard in + */ + public void runClient() throws NotYetConnectedException, IOException { + final Thread thread = new Thread() { + @Override + public void run() { + connect(); + } + }; + thread.start(); + + final BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); + String event = ""; + String line; + while ((line = in.readLine()) != null) { + if (line.equals("exit")) { + break; + } + + final String current = line.trim(); + if ("".equals(current)) { + this.send(event); + event = ""; + } else { + event += current; + } + } + + thread.interrupt(); + this.close(CloseFrame.NORMAL); + } + +} diff --git a/tools/simple-wsclient/src/main/java/org/onap/policy/apex/tools/simple/wsclient/SimpleEcho.java b/tools/simple-wsclient/src/main/java/org/onap/policy/apex/tools/simple/wsclient/SimpleEcho.java new file mode 100644 index 000000000..4b67cb862 --- /dev/null +++ b/tools/simple-wsclient/src/main/java/org/onap/policy/apex/tools/simple/wsclient/SimpleEcho.java @@ -0,0 +1,108 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed 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. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.apex.tools.simple.wsclient; + +import java.net.URI; +import java.net.URISyntaxException; + +import org.apache.commons.lang3.Validate; +import org.java_websocket.client.WebSocketClient; +import org.java_websocket.framing.CloseFrame; +import org.java_websocket.handshake.ServerHandshake; + +/** + * Simple WS client as an echo. + * + * @author Sven van der Meer (sven.van.der.meer@ericsson.com) + */ +public class SimpleEcho extends WebSocketClient { + + /** Application name, used as prompt. */ + private final String appName; + + /** + * Creates a new simple echo object. + * + * @param server the name of the server as either IP address or fully qualified host name, must not be blank + * @param port the port to be used, must not be blank + * @param appName the application name, used as prompt, must not be blank + * @throws URISyntaxException is URI could not be created from server/port settings + * @throws RuntimeException if server or port where blank + */ + public SimpleEcho(final String server, final String port, final String appName) throws URISyntaxException { + super(new URI("ws://" + server + ":" + port)); + Validate.notBlank(appName, "SimpleEcho: given application name was blank"); + this.appName = appName; + } + + @Override + public void onClose(final int code, final String reason, final boolean remote) { + System.out.println(this.appName + ": Connection closed by " + (remote ? "APEX" : "me")); + System.out.print(" ==-->> "); + switch (code) { + case CloseFrame.NORMAL: + System.out.println("normal"); + break; + case CloseFrame.GOING_AWAY: + System.out.println("APEX going away"); + break; + case CloseFrame.PROTOCOL_ERROR: + System.out.println("some protocol error"); + break; + case CloseFrame.REFUSE: + System.out.println("received unacceptable type of data"); + break; + case CloseFrame.NO_UTF8: + System.out.println("expected UTF-8, found something else"); + break; + case CloseFrame.TOOBIG: + System.out.println("message too big"); + break; + case CloseFrame.UNEXPECTED_CONDITION: + System.out.println("unexpected server condition"); + break; + default: + System.out.println("unkown close frame code"); + break; + } + System.out.print(" ==-->> " + reason); + } + + @Override + public void onError(final Exception ex) { + System.err.println(this.appName + ": " + ex.getMessage()); + } + + @Override + public void onMessage(final String message) { + System.out.println(this.appName + ": received"); + System.out.println("---------------------------------"); + System.out.println(message); + System.out.println("================================="); + System.out.println(); + } + + @Override + public void onOpen(final ServerHandshake handshakedata) { + System.out.println(this.appName + ": opened connection to APEX (" + handshakedata.getHttpStatusMessage() + ")"); + } + +} diff --git a/tools/simple-wsclient/src/main/java/org/onap/policy/apex/tools/simple/wsclient/package-info.java b/tools/simple-wsclient/src/main/java/org/onap/policy/apex/tools/simple/wsclient/package-info.java new file mode 100644 index 000000000..ea30f93b5 --- /dev/null +++ b/tools/simple-wsclient/src/main/java/org/onap/policy/apex/tools/simple/wsclient/package-info.java @@ -0,0 +1,27 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2016-2018 Ericsson. All rights reserved. + * ================================================================================ + * Licensed 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. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ + +/** + * A simple Websocket client, runs as console or echo client. + * + * @author Sven van der Meer (sven.van.der.meer@ericsson.com) + */ + +package org.onap.policy.apex.tools.simple.wsclient; |