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Rest Interface for GlassFish Management and Monitoring
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/*
* Copyright (c) 2011, 2018 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package org.glassfish.admin.rest.client;
import jakarta.ws.rs.client.Client;
import jakarta.ws.rs.client.Entity;
import jakarta.ws.rs.client.WebTarget;
import jakarta.ws.rs.core.MediaType;
import jakarta.ws.rs.core.MultivaluedHashMap;
import jakarta.ws.rs.core.MultivaluedMap;
import jakarta.ws.rs.core.Response;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import org.codehaus.jettison.json.JSONObject;
import org.glassfish.admin.rest.client.utils.Util;
/**
*
* @author jasonlee
*/
public abstract class RestClientBase {
protected static final String RESPONSE_TYPE = MediaType.APPLICATION_JSON;
protected Map entityValues = new HashMap();
protected List children;
protected int status;
protected String message;
protected Client client;
protected RestClientBase parent;
private boolean initialized = false;
private boolean isNew = false;
protected RestClientBase(Client c, RestClientBase p) {
client = c;
parent = p;
}
protected RestClientBase getParent() {
return parent;
}
protected String getRestUrl() {
return getParent().getRestUrl() + getSegment();
}
protected abstract String getSegment();
public int getStatus() {
return status;
}
public String getMessage() {
return message;
}
public boolean save() {
Response response = client.target(getRestUrl()).request(RESPONSE_TYPE)
.post(buildMultivalueMapEntity(entityValues, MediaType.MULTIPART_FORM_DATA_TYPE), Response.class);
boolean success = isSuccess(response);
if (!success) {
status = response.getStatus();
message = response.readEntity(String.class);
} else {
isNew = false;
}
return success;
}
public boolean delete() {
Response response = client.target(getRestUrl()).request(RESPONSE_TYPE).delete(Response.class);
boolean success = isSuccess(response);
if (!success) {
status = response.getStatus();
message = response.readEntity(String.class);
}
return success;
}
public RestResponse execute(Method method, String endpoint, boolean needsMultiPart) {
return execute(method, endpoint, new HashMap(), needsMultiPart);
}
public RestResponse execute(Method method, String endPoint, Map payload) {
return execute(method, endPoint, payload, false);
}
public RestResponse execute(Method method, String endPoint, Map payload, boolean needsMultiPart) {
final WebTarget target = client.target(getRestUrl() + endPoint);
Response clientResponse;
switch (method) {
case POST: {
// TODO - JERSEY2
// if (needsMultiPart) {
// clientResponse = target
// .request(RESPONSE_TYPE)
// .post(buildFormDataMultipart(payload, MediaType.MULTIPART_FORM_DATA_TYPE), Response.class);
// } else
{
clientResponse = target.request(RESPONSE_TYPE).post(buildMultivalueMapEntity(payload, null), Response.class);
}
break;
}
case PUT: {
// TODO - JERSEY2
// if (needsMultiPart) {
// clientResponse = target
// .request(RESPONSE_TYPE)
// .put(buildFormDataMultipart(payload, MediaType.MULTIPART_FORM_DATA_TYPE), Response.class);
// } else
{
clientResponse = target.request(RESPONSE_TYPE).put(buildMultivalueMapEntity(payload, null), Response.class);
}
break;
}
case DELETE: {
// addQueryParams(payload, target);
clientResponse = targetWithQueryParams(target, buildMultivalueMap(payload)).request(RESPONSE_TYPE).delete(Response.class);
break;
}
default: {
// addQueryParams(payload, target);
clientResponse = targetWithQueryParams(target, buildMultivalueMap(payload)).request(RESPONSE_TYPE).get(Response.class);
}
}
return new RestResponse(clientResponse);
}
private static WebTarget targetWithQueryParams(WebTarget target, MultivaluedMap paramMap) {
for (Entry> param : paramMap.entrySet()) {
target = target.queryParam(param.getKey(), param.getValue());
}
return target;
}
protected boolean isSuccess(Response response) {
int responseStatus = response.getStatus();
return ((responseStatus == 200) || (responseStatus == 201));
}
protected boolean isNew() {
return isNew;
}
protected void setIsNew() {
this.isNew = true;
}
protected synchronized void initialize() {
if (!initialized) {
Response clientResponse = client.target(getRestUrl()).request(RESPONSE_TYPE).get(Response.class);
Map responseMap = Util.processJsonMap(clientResponse.readEntity(String.class));
status = clientResponse.getStatus();
getEntityValues(responseMap);
getChildren(responseMap);
initialized = true;
}
}
protected T getValue(String key, Class clazz) {
initialize();
T retValue = null;
Object value = entityValues.get(key);
if ((value != null) && !(value.equals(JSONObject.NULL))) {
retValue = (T) value;
}
return retValue;
}
protected void setValue(String key, T value) {
initialize();
entityValues.put(key, value);
}
protected Map getEntityMetadata(Map extraProperties) {
Map metadata = new HashMap();
List> methods = (List>) extraProperties.get("methods");
for (Map entry : methods) {
if ("POST".equals(entry.get("name"))) {
Map params = (Map) entry.get("messageParameters");
if (params != null) {
for (Map.Entry param : params.entrySet()) {
String paramName = param.getKey();
Map md = (Map) param.getValue();
metadata.put(paramName, md.get("type"));
}
}
}
}
return metadata;
}
protected void getEntityValues(Map responseMap) {
entityValues = new HashMap();
Map extraProperties = (Map) responseMap.get("extraProperties");
if (extraProperties != null) {
Map entity = (Map) extraProperties.get("entity");
if (entity != null) {
Map metadata = getEntityMetadata(extraProperties);
for (Map.Entry entry : entity.entrySet()) {
String type = metadata.get(entry.getKey());
Object value = null;
if ("int".equals(type)) {
value = Integer.parseInt(entry.getValue());
} else if ("boolean".equals(type)) {
value = Boolean.parseBoolean(entry.getValue());
} else {
value = entry.getValue();
}
entityValues.put(entry.getKey(), value);
}
}
}
}
protected void getChildren(Map responseMap) {
children = new ArrayList();
Map extraProperties = (Map) responseMap.get("extraProperties");
if (extraProperties != null) {
Map childResources = (Map) extraProperties.get("childResources");
if (childResources != null) {
for (Map.Entry child : childResources.entrySet()) {
children.add(child.getKey());
}
}
}
}
/*
protected void addQueryParams(Map payload, WebResource resource) {
if ((payload != null) && !payload.isEmpty()) {
// resource.queryParams(buildMultivalueMap(payload));
}
}
*/
// TODO - JERSEY2
// protected Entity buildFormDataMultipart(Map payload, MediaType type) {
// FormDataMultiPart formData = new FormDataMultiPart();
// Logger logger = Logger.getLogger(RestClientBase.class.getName());
// for (final Map.Entry entry : payload.entrySet()) {
// final Object value = entry.getValue();
// final String key = entry.getKey();
// if (value instanceof Collection) {
// for (Object obj : ((Collection) value)) {
// try {
// formData.field(key, obj, MediaType.TEXT_PLAIN_TYPE);
// } catch (ClassCastException ex) {
// if (logger.isLoggable(Level.FINEST)) {
// logger.log(Level.FINEST, "Unable to add key (\"{0}\") w/ value (\"{1}\").",
// new Object[]{key, obj});
// }
//
// // Allow it to continue b/c this property most likely
// // should have been excluded for this request
// }
// }
// } else {
// //formData.putSingle(key, (value != null) ? value.toString() : value);
// try {
// if (value instanceof File) {
// formData.getBodyParts().add((new FileDataBodyPart(key, (File)value)));
// } else {
// formData.field(key, value, MediaType.TEXT_PLAIN_TYPE);
// }
// } catch (ClassCastException ex) {
// if (logger.isLoggable(Level.FINEST)) {
// logger.log(Level.FINEST,
// "Unable to add key (\"{0}\") w/ value (\"{1}\")." ,
// new Object[]{key, value});
// }
// // Allow it to continue b/c this property most likely
// // should have been excluded for this request
// }
// }
// }
// return Entity.entity(formData, type);
// }
private Entity> buildMultivalueMapEntity(Map payload, MediaType type) {
return Entity.entity(buildMultivalueMap(payload), type);
}
private MultivaluedMap buildMultivalueMap(Map payload) {
MultivaluedMap formData = new MultivaluedHashMap();
for (final Map.Entry entry : payload.entrySet()) {
Object value = entry.getValue();
if (JSONObject.NULL.equals(value)) {
value = null;
} else if (value != null) {
value = value.toString();
}
formData.add(entry.getKey(), value);
}
return formData;
}
public static enum Method {
GET, PUT, POST, DELETE
};
}
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