/
TodoOperationsServiceImpl.java
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/
TodoOperationsServiceImpl.java
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package com.adobe.aem.social.todomvc.impl;
import java.security.SecureRandom;
import java.text.SimpleDateFormat;
import java.util.Collections;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import javax.jcr.Session;
import org.apache.commons.lang3.StringUtils;
import org.apache.felix.scr.annotations.Reference;
import org.apache.felix.scr.annotations.ReferenceCardinality;
import org.apache.felix.scr.annotations.Component;
import org.apache.felix.scr.annotations.ReferencePolicy;
import org.apache.felix.scr.annotations.Service;
import org.apache.sling.api.SlingHttpServletRequest;
import org.apache.sling.api.resource.LoginException;
import org.apache.sling.api.resource.ModifiableValueMap;
import org.apache.sling.api.resource.PersistenceException;
import org.apache.sling.api.resource.Resource;
import org.apache.sling.api.resource.ResourceResolver;
import org.apache.sling.api.resource.ResourceResolverFactory;
import org.apache.sling.api.resource.ValueMap;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.adobe.aem.social.todomvc.api.TodoItem;
import com.adobe.aem.social.todomvc.api.TodoOperationExtension;
import com.adobe.aem.social.todomvc.api.TodoOperationTypes;
import com.adobe.aem.social.todomvc.api.TodoOperations;
import com.adobe.cq.social.scf.OperationException;
import com.adobe.cq.social.scf.core.operations.AbstractOperationService;
import com.adobe.cq.social.srp.SocialResourceProvider;
import com.adobe.cq.social.srp.utilities.api.SocialResourceUtilities;
import com.adobe.cq.social.ugcbase.CollabUser;
import com.adobe.cq.social.ugcbase.SocialUtils;
@Component(immediate = true)
@Service
public class TodoOperationsServiceImpl extends
AbstractOperationService<TodoOperationExtension, TodoOperationTypes, TodoItem> implements TodoOperations {
private static final Logger LOG = LoggerFactory.getLogger(TodoOperationsServiceImpl.class);
@Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY, policy = ReferencePolicy.STATIC)
protected ResourceResolverFactory resourceResolverFactory;
private static final String UGC_WRITER = "ugc-writer";
private static SecureRandom randomGenerator = new SecureRandom();
private static final char[] RANDOM_CHARS = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
.toCharArray();
public Resource create(SlingHttpServletRequest request) throws OperationException {
final Resource todolist = request.getResource();
final Session userSession = request.getResourceResolver().adaptTo(Session.class);
final String owner = userSession.getUserID();
final String text = request.getParameter("itemText");
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
final String date = sdf.format(new Date());
return create(todolist, owner, text, date, request.getResourceResolver());
}
public Resource create(Resource todolist, String owner, String text, String date, ResourceResolver resolver)
throws OperationException {
if (StringUtils.isEmpty(text)) {
throw new OperationException("todo item text must be present", 400);
}
if (!todolist.isResourceType("scf-todo/components/hbs/todos")) {
throw new OperationException("todo items can only be created under a todo list component", 400);
}
final SocialResourceProvider srp = initializeSRPForTodos(todolist);
final SocialResourceUtilities sru = resolver.adaptTo(SocialResourceUtilities.class);
if (!sru.checkPermission(resolver, sru.resourceToACLPath(todolist), Session.ACTION_ADD_NODE)) {
throw new OperationException("cannot create todos", 400);
}
Map<String, Object> props = new HashMap<String, Object>(5);
props.put("jcr:description", text);
props.put("jcr:date", date);
props.put(CollabUser.PROP_NAME, owner);
props.put(SocialUtils.PN_PARENTID, todolist.getPath() + "/" + owner);
props.put(SocialUtils.PROP_COMPONENT, todolist.getPath());
props.put("sling:resourceType", "scf-todo/components/hbs/todoitem");
props.put("jcr:primaryType", "nt:unstructured");
// use the Resource API to create resource to make this data store agnostic
Resource item;
try {
item =
srp.create(resolver, sru.resourceToUGCStoragePath(todolist) + "/" + owner + "/"
+ createUniqueNameHint(text), props);
resolver.commit();
} catch (final PersistenceException e) {
LOG.error("Unable to create todo item", e);
throw new OperationException("Unable to create todo item", 500);
}
return item;
}
public void delete(SlingHttpServletRequest request) throws OperationException {
// TODO Auto-generated method stub
}
public void delete(Resource todoItem) throws OperationException {
// TODO Auto-generated method stub
}
public Resource updateStatus(SlingHttpServletRequest request) throws OperationException {
final Resource todoItem = request.getResource();
final Session userSession = request.getResourceResolver().adaptTo(Session.class);
final String user = userSession.getUserID();
final boolean isDone = Boolean.parseBoolean(request.getParameter("isDone"));
return updateStatus(todoItem, isDone, user);
}
public Resource updateStatus(final Resource todoItem, final boolean isDone, final String user)
throws OperationException {
if (!todoItem.isResourceType("scf-todo/components/hbs/todoitem")) {
throw new OperationException("only todo items can be updated", 400);
}
final ValueMap props = todoItem.adaptTo(ValueMap.class);
final String owner = props.get(CollabUser.PROP_NAME, "");
final String currentUser = todoItem.getResourceResolver().getUserID();
final SocialResourceUtilities sru = todoItem.getResourceResolver().adaptTo(SocialResourceUtilities.class);
final Resource todoList =
todoItem.getResourceResolver().getResource(props.get(SocialUtils.PROP_COMPONENT, ""));
if (!!sru.checkPermission(todoItem.getResourceResolver(), sru.resourceToACLPath(todoList), Session.ACTION_ADD_NODE)
&& !StringUtils.equals(owner, currentUser)) {
throw new OperationException("cannot create todos", 400);
}
ResourceResolver ugcResolver = null;
try {
ugcResolver = getUGCWriterResolver();
final Resource modifiableTodoItem = ugcResolver.getResource(todoItem.getPath());
final ModifiableValueMap modProps = modifiableTodoItem.adaptTo(ModifiableValueMap.class);
modProps.put("isDone_b", isDone);
ugcResolver.commit();
} catch (final PersistenceException e) {
LOG.error("Unable to update todo item", e);
throw new OperationException("Unable to update todo item", 500);
} finally {
if (ugcResolver != null && ugcResolver.isLive()) {
ugcResolver.close();
}
}
return todoItem;
}
private SocialResourceProvider initializeSRPForTodos(final Resource todolist) {
final SocialResourceUtilities sru = todolist.getResourceResolver().adaptTo(SocialResourceUtilities.class);
sru.getUGCResource(todolist);
SocialResourceProvider srp = sru.getSocialResourceProvider(todolist);
srp.setConfig(sru.getStorageConfig(todolist));
return srp;
}
private String createUniqueNameHint(String message) {
StringBuilder nodeName;
nodeName = new StringBuilder(generateRandomString(6)).append("-");
message = message.replaceAll("\\<.*?>", "");
message = message.replaceAll("\\&.*?\\;", "");
message = message.replaceAll(" ", "-");
if (message.length() > 20) {
nodeName.append(message.substring(0, 20));
} else {
nodeName.append(message);
}
return nodeName.toString();
}
private ResourceResolver getUGCWriterResolver() throws OperationException {
try {
return resourceResolverFactory.getServiceResourceResolver(Collections.singletonMap(
ResourceResolverFactory.SUBSERVICE, (Object) UGC_WRITER));
} catch (LoginException e) {
throw new OperationException("Not allowed", e, 400);
}
}
private String generateRandomString(final int length) {
final StringBuilder str = new StringBuilder();
for (int i = 0; i < length; i++) {
str.append(RANDOM_CHARS[randomGenerator.nextInt(RANDOM_CHARS.length)]);
}
return str.toString();
}
}