com.ibm.maximo.oslc.Resource Maven / Gradle / Ivy
/*
* Licensed Materials - Property of IBM
*
* (C) COPYRIGHT IBM CORP. 2015 All Rights Reserved
*
* US Government Users Restricted Rights - Use, duplication or
* disclosure restricted by GSA ADP Schedule Contract with
* IBM Corp.
*/
package com.ibm.maximo.oslc;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import javax.json.*;
/**
*
* {@code Resource} implement the operations on Resource.
* It provides the data, uri, attachment and so on.
*
* This object can be created by {@code ResourceSet} or {@code MaximoConnector}.
* The following code shows how to create {@code Resource} using {@code ResourceSet}
* or using the {@code MaximoConnector}
*
*
*
* Resource re = re.member(index);
* Resource re = re.fetchMember(uri,properties);
* Resource re = mc.resource(uri, properties);
*
*
*
*
* The following examples demonstrate how to build a new {@code Resource}
*
*
* Resource re = new Resource();
* Resource re = new Resource(uri);
* Resource re = new Resource(jsonObject);
* Resource re = new Resource(uri,maximoConnector);
* Resource re = new Resource(jsonObject, maximoConnector);
*
*
*
*
* The following examples demonstrate how to set uri and maximoConnector to {@code Resource}
*
*
* re.uri(URI).maximoConnector(maximoConnector);
*
*
*
*
* The following examples show how to load and reload data
*
*
* re.load();
* re.reload();
*
*
*
*
* The following examples show how to get information from {@code Resource}
*
*
* JsonObject jo = re.toJSON();
* byte[] joBytes = re.toJSONBytes();
*
*
*
* The following examples show how to update, merge and delete the {&code Resource}
*
*
* re.update(jsonObject,properties);
* re.merge(jsonObject,properties);
* re.delete(index);
* rs.re.delete(); //if the attachment is deleted as rs.re.detele(), please reload {@code ResourceSet} after.
*
*
*
* The following example show how to get attachmentSet, relatedResource and how to invoke action by {@code Resource}
*
* AttachmentSet ats = re.attachmentSet(doclinkAttrName, relName);
* Resource relationRe = re.relatedResource(attrName);
* re.invokeAction(actionName,jsonObeject);
*
*
*/
public class Resource {
private String href;
private JsonObject jsonObject;
private MaximoConnector mc;
private boolean isLoaded = false;
//constructor
public Resource(JsonObject jo)
{
this.jsonObject = jo;
if(jo.containsKey("rdf:about")){
this.href = jo.getString("rdf:about");
}else if(jo.containsKey("rdf:resoure")){
this.href = jo.getString("rdf:resource");
}else{
this.href = jo.getString("href");
}
}
public Resource(JsonObject jo,MaximoConnector mc)
{
this.jsonObject = jo;
if(jo.containsKey("rdf:about")){
this.href = jo.getString("rdf:about");
}else if(jo.containsKey("rdf:resoure")){
this.href = jo.getString("rdf:resource");
}else{
this.href = jo.getString("href");
}
this.mc = mc;
}
public Resource(String href){
this.href =href;
}
public Resource(String href, MaximoConnector mc){
this.href = href;
this.mc = mc;
}
public Resource uri(String href){
this.href = href;
return this;
}
public Resource maximoConnector(MaximoConnector mc){
this.mc = mc;
return this;
}
/**
* Get current URI
*
*/
public String getURI(){
return this.href;
}
/**
* Get Resource data in JSON
*
* @throws IOException
* @throws OslcException
*/
public JsonObject toJSON() throws IOException, OslcException{
if(!isLoaded){
load();
}
return this.jsonObject;
}
/**
* Get Resource data in JSONBytes
*
* @throws IOException
* @throws OslcException
*/
public byte[] toJSONBytes() throws OslcException,IOException{
if(!isLoaded){
load();
}
ByteArrayOutputStream bo = new ByteArrayOutputStream();
Json.createWriter(bo).writeObject(this.jsonObject);
bo.close();
return bo.toByteArray();
}
/**
* Load current data with properties in header
*
* @throws IOException
* @throws OslcException
*/
public Resource load(String... properties) throws OslcException,
IOException {
if (isLoaded) {
throw new OslcException(
"The resource has been loaded, please call reload for refreshing");
}
if (this.href.isEmpty()) {
throw new OslcException("The_resource_is_invalid");
}
StringBuilder strb = new StringBuilder();
strb.append(this.href);
if (properties.length > 0) {
strb.append("?&oslc.properties=");
for (String property : properties) {
strb.append(property).append(",");
}
if (strb.toString().endsWith(",")) {
strb.deleteCharAt(strb.toString().length() - 1);
}
}
this.jsonObject = this.mc.get(strb.toString());
return this;
}
public Resource reload(String... properties) throws OslcException, IOException{
this.isLoaded = false;
load(properties);
return this;
}
/**
* Update the Resource
* @param jo
*
* @throws OslcException
* @throws IOException
*/
public Resource update(JsonObject jo,String... properties) throws OslcException, IOException
{
if(this.href.isEmpty()){
throw new OslcException("The_resource_is_invalid");
}
this.jsonObject = this.mc.update(this.href,jo, properties);
if(properties.length>0){
System.out.println("Test for update with properties: "+this.jsonObject.toString());
}
return this;
}
public Resource merge(JsonObject jo,String... properties) throws OslcException, IOException
{
if(this.href.isEmpty()){
throw new OslcException("The_resource_is_invalid");
}
this.jsonObject = this.mc.merge(this.href,jo, properties);
return this;
}
/**
* Load the attachmentset for resource
* Note: there has to be a relation between them
*
*/
public AttachmentSet attachmentSet(String doclinkAttrName, String relName){
String str = null;
if(doclinkAttrName == null){
doclinkAttrName = "doclinks";
}
if(this.jsonObject.containsKey(doclinkAttrName)){
JsonObject obj = jsonObject.getJsonObject(doclinkAttrName);
str = obj.getString("href");
}else if(this.jsonObject.containsKey("spi:"+ doclinkAttrName)){
JsonObject obj = jsonObject.getJsonObject("spi" + doclinkAttrName);
if(obj.containsKey("rdf:about")){
str = obj.getString("rdf:about");
}else if(obj.containsKey("rdf:resource")){
str = obj.getString("rdf:resource");
}
}else{
if(relName != null)
{
str = this.href + "/" + relName.toUpperCase();
}
else
str = this.href + "/DOCLINKS";
}
return new AttachmentSet(str,this.mc);
}
public AttachmentSet attachmentSet() throws OslcException{
String str = null;
if(this.jsonObject.containsKey("doclinks")){
JsonObject obj = jsonObject.getJsonObject("doclinks");
str = obj.getString("href");
}else if(this.jsonObject.containsKey("spi:"+ "doclinks")){
JsonObject obj = jsonObject.getJsonObject("spi" + "doclinks");
if(obj.containsKey("rdf:about")){
str = obj.getString("rdf:about");
}else if(obj.containsKey("rdf:resource")){
str = obj.getString("rdf:resource");
}
}else{
throw new OslcException("invalid_relation");
}
return new AttachmentSet(str,this.mc);
}
public Resource relatedResource(String attrName) throws IOException, OslcException
{
//get the uri value from the attrname json property
//mc.resourceSet(osName).fetchMember
String url = new String();
JsonObject jo = null;
if(this.jsonObject.containsKey(attrName)){
jo = this.jsonObject.getJsonObject(attrName);
}else if(this.jsonObject.containsKey("spi" + attrName)){
jo = this.jsonObject.getJsonObject("spi" + attrName);
}else{
return null;
}
if(jo.containsKey("href")){
url = jo.getString("href");
}else if(jo.containsKey("rdf:resource")){
url = jo.getString("rdf:resource");
}else if(jo.containsKey("rdf:about")){
url = jo.getString("rdf:about");
}else{
return null;
}
return this.mc.resourceSet().fetchMember(url);
}
/**
* Invoke Action
* @param actionName
* @param jo
*
* @throws IOException
* @throws OslcException
*/
public Resource invokeAction(String actionName,JsonObject jo) throws IOException, OslcException{
this.mc.update(this.href + (this.href.contains("?")?"":"?")+"&action="+actionName,jo);
return this;
}
public void delete() throws IOException, OslcException{
this.mc.delete(this.href);
}
}