diff options
Diffstat (limited to 'sca-java-2.x/tags/2.0.1-RC1/modules/shell/src/main/java/org/apache/tuscany/sca/shell/commands/Invoke.java')
| -rw-r--r-- | sca-java-2.x/tags/2.0.1-RC1/modules/shell/src/main/java/org/apache/tuscany/sca/shell/commands/Invoke.java | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/shell/src/main/java/org/apache/tuscany/sca/shell/commands/Invoke.java b/sca-java-2.x/tags/2.0.1-RC1/modules/shell/src/main/java/org/apache/tuscany/sca/shell/commands/Invoke.java new file mode 100644 index 0000000000..fe93903bce --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/shell/src/main/java/org/apache/tuscany/sca/shell/commands/Invoke.java @@ -0,0 +1,142 @@ +/*
+ * 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.tuscany.sca.shell.commands;
+
+import static java.lang.System.out;
+
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.util.Arrays;
+
+import jline.Completor;
+import jline.NullCompletor;
+
+import org.apache.tuscany.sca.shell.Command;
+import org.apache.tuscany.sca.shell.Shell;
+import org.apache.tuscany.sca.shell.jline.ServiceCompletor;
+import org.apache.tuscany.sca.shell.jline.ServiceOperationCompletor;
+
+public class Invoke implements Command {
+
+ private Shell shell;
+
+ public Invoke(Shell shell) {
+ this.shell = shell;
+ }
+
+ @Override
+ public String getName() {
+ return "invoke";
+ }
+
+ @Override
+ public String getShortHelp() {
+ return "invoke <component>[/<service>] <operation> [<arg0> <arg1> ...]";
+ }
+
+ @Override
+ public String getHelp() {
+ StringBuilder helpText = new StringBuilder();
+ helpText.append(" Invokes an operation of a component service.\n");
+ helpText.append(" (presently parameters are limited to simple types)\n");
+ helpText.append("\n");
+ helpText.append(" Arguments:\n");
+ helpText.append(" component - (required) the name of the component\n");
+ helpText.append(" service - (optional) the name of the component service, which may be omitted\n");
+ helpText.append(" when the component has a single service.\n");
+ helpText.append(" operation - (required) the name of the operation\n");
+ helpText.append(" args - (optional) the operation arguments\n");
+ return helpText.toString();
+ }
+
+ @Override
+ public Completor[] getCompletors() {
+ return new Completor[]{new ServiceCompletor(shell), new ServiceOperationCompletor(shell), new NullCompletor()};
+ }
+
+ @Override
+ public boolean invoke(String[] args) throws Exception {
+ if (args.length < 2) {
+ System.err.println("Wrong number of args");
+ System.err.println(getShortHelp());
+ return true;
+ }
+ String endpointName = args[0];
+ String operationName = args[1];
+ String params[] = new String[args.length - 2];
+ System.arraycopy(args, 2, params, 0, params.length);
+ Object proxy = shell.getNode().getService(null, endpointName);
+ invoke(proxy, operationName, params);
+ return true;
+ }
+
+ static void invoke(Object proxy, String operationName, String... params) throws IllegalAccessException, InvocationTargetException {
+ Method foundMethod = null;
+ for (Method m : proxy.getClass().getMethods()) {
+ if (m.getName().equals(operationName)) {
+ if (m.getParameterTypes().length == params.length) {
+ Object parameters[] = new Object[params.length];
+ int i = 0;
+ for (Class<?> type : m.getParameterTypes()) {
+ if (type == byte.class || type == Byte.class) {
+ parameters[i] = Byte.valueOf(params[i]);
+ } else if (type == char.class || type == Character.class) {
+ parameters[i] = params[i].charAt(0);
+ } else if (type == boolean.class || type == Boolean.class) {
+ parameters[i] = Boolean.valueOf(params[i]);
+ } else if (type == short.class || type == Short.class) {
+ parameters[i] = Short.valueOf(params[i]);
+ } else if (type == int.class || type == Integer.class) {
+ parameters[i] = Integer.valueOf(params[i]);
+ } else if (type == long.class || type == Long.class) {
+ parameters[i] = Long.valueOf(params[i]);
+ } else if (type == float.class || type == Float.class) {
+ parameters[i] = Float.valueOf(params[i]);
+ } else if (type == double.class || type == Double.class) {
+ parameters[i] = Double.valueOf(params[i]);
+ } else if (type == String.class) {
+ parameters[i] = params[i];
+ } else {
+ throw new IllegalArgumentException("Parameter type is not supported: " + type);
+ }
+ i++;
+ }
+ Object result = m.invoke(proxy, parameters);
+
+ if (result != null && result.getClass().isArray()) {
+ out.println(Arrays.toString((Object[])result));
+ } else {
+ out.println(result);
+ }
+
+ return;
+
+ } else {
+ foundMethod = m;
+ }
+ }
+ }
+ if (foundMethod != null) {
+ System.err.println("Service operation " + foundMethod.getName() + " expects " + foundMethod.getParameterTypes().length + " arguments");
+ } else {
+ System.err.println("Operation not found: " + operationName);
+ }
+ }
+}
|