Merge master of guterresrafael/traccar into rest

1 files changed, 99 insertions, 0 deletions

diff --git a/src/org/traccar/api/BaseResource.java b/src/org/traccar/api/BaseResource.java
new file mode 100644
index 000000000..54d606ab6
--- /dev/null
+++ b/src/org/traccar/api/BaseResource.java
@@ -0,0 +1,99 @@
+/*
+ * Copyright 2015 Anton Tananaev (anton.tananaev@gmail.com)
+ *
+ * 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.traccar.api;
+
+import java.sql.SQLException;
+import java.util.Collection;
+import javax.ws.rs.WebApplicationException;
+import javax.ws.rs.core.Response;
+import javax.ws.rs.core.SecurityContext;
+import org.traccar.Context;
+import org.traccar.helper.Clazz;
+
+public class BaseResource<T, I> {
+
+    private final Class<T> clazz = Clazz.getGenericArgumentType(getClass());
+
+    @javax.ws.rs.core.Context
+    private SecurityContext securityContext;
+
+    public Collection<T> getEntities() {
+        Collection<T> collection;
+        try {
+            collection = Context.getDataManager().get(clazz);
+        } catch (SQLException e) {
+            throw new WebApplicationException(ResponseBuilder.badRequest(e));
+        }
+        if (collection == null || collection.isEmpty()) {
+            throw new WebApplicationException(ResponseBuilder.notFound());
+        } else {
+            return collection;
+        }
+    }
+
+    public T getEntity(I id) {
+        validateSecurityContext(ApplicationRole.USER, id);
+        T entity = Clazz.newInstance(clazz);
+        try {
+            Clazz.setId(entity, id);
+            entity = Context.getDataManager().get(entity);
+        } catch (Exception e) {
+            throw new WebApplicationException(ResponseBuilder.badRequest(e));
+        }
+        if (entity == null) {
+            throw new WebApplicationException(ResponseBuilder.notFound());
+        } else {
+            return entity;
+        }
+    }
+
+    public Response postEntity(T entity) {
+        try {
+            Context.getDataManager().add(entity);
+            return ResponseBuilder.ok(entity);
+        } catch (Exception e) {
+            return ResponseBuilder.badRequest(e);
+        }
+    }
+
+    public Response putEntity(I id, T entity) {
+        try {
+            Clazz.setId(entity, id);
+            Context.getDataManager().update(entity);
+            return ResponseBuilder.ok(entity);
+        } catch (Exception e) {
+            return ResponseBuilder.badRequest(e);
+        }
+    }
+
+    public Response deleteEntity(I id) {
+        try {
+            T entity = Clazz.newInstance(clazz);
+            Clazz.setId(entity, id);
+            Context.getDataManager().remove(entity);
+            return ResponseBuilder.deleted();
+        } catch (Exception e) {
+            return ResponseBuilder.badRequest(e);
+        }
+    }
+
+    private void validateSecurityContext(String role, I id) {
+        UserPrincipal userPrincipal = (UserPrincipal) securityContext.getUserPrincipal();
+        if (!securityContext.isUserInRole(role) && !userPrincipal.getId().equals(id)) {
+            throw new WebApplicationException(ResponseBuilder.forbidden());
+        }
+    }
+}