+/*
+ * Copyright (C) 2007-2012 Argeo GmbH
+ *
+ * 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.
+ */
+package org.argeo.server;
+
+import java.io.PrintWriter;
+import java.io.StringWriter;
+
+import org.apache.commons.io.IOUtils;
+import org.argeo.ArgeoException;
+
+/** Answer to an execution of a remote service which performed changes. */
+public class ServerAnswer {
+ public final static String OK = "OK";
+ public final static String ERROR = "ERROR";
+
+ private String status = OK;
+ private String message = "";
+
+ // TODO: add an exception field
+
+ /** Canonical constructor */
+ public ServerAnswer(String status, String message) {
+ setStatus(status);
+ if (message == null)
+ throw new ArgeoException("Message cannot be null");
+ this.message = message;
+ }
+
+ /** Empty constructor */
+ public ServerAnswer() {
+ }
+
+ public String getStatus() {
+ return status;
+ }
+
+ public void setStatus(String status) {
+ if (status == null || (!status.equals(OK) && !status.equals(ERROR)))
+ throw new ArgeoException("Bad status format: " + status);
+ this.status = status;
+ }
+
+ public String getMessage() {
+ return message;
+ }
+
+ public void setMessage(String message) {
+ this.message = message;
+ }
+
+ public Boolean isOk() {
+ return status.equals(OK);
+ }
+
+ public Boolean isError() {
+ return status.equals(ERROR);
+ }
+
+ public static ServerAnswer error(String message) {
+ return new ServerAnswer(ERROR, message);
+ }
+
+ public static ServerAnswer error(Throwable e) {
+ StringWriter writer = new StringWriter();
+ try {
+ e.printStackTrace(new PrintWriter(writer));
+ return new ServerAnswer(ERROR, writer.toString());
+ } finally {
+ IOUtils.closeQuietly(writer);
+ }
+ }
+
+ public static ServerAnswer ok(String message) {
+ return new ServerAnswer(OK, message);
+ }
+
+ @Override
+ public String toString() {
+ return "ServerAnswer{status:" + status + ", message:" + message + "}";
+ }
+
+}