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// Copyright 2009 Google Inc.
//
// 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 com.google.visualization.datasource;

import java.io.IOException;

import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
* An abstract class for data source servlet implementations.
*
* @author Yaniv S.
*/
public abstract class DataSourceServlet extends HttpServlet implements DataTableGenerator {

@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
DataSourceHelper.executeDataSourceServletFlow(req, resp, this, isRestrictedAccessMode());
}

/**
* Returns a flag that indicates whether the servlet is in restricted-access mode.
* In restricted-access mode the server serves only requests coming from the same domain as the
* server domain (i.e., same origin policy).
* This protects the server from XSRF attacks while limiting the requests to which the server
* can respond.
*
* @return True if this servlet operates in restricted-access mode, false otherwise.
*/
protected boolean isRestrictedAccessMode() {
return true;
}

@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws IOException {
doGet(req, resp);
}

@Override
public Capabilities getCapabilities() {
return Capabilities.NONE;
}
}
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Change log

r18 by shubay on Jun 18, 2009   Diff
Add maven support. Move src/java to
src/main/java.
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Older revisions

r1 by shubay on May 14, 2009   Diff
First time submit of datasource
library.
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File info

Size: 1929 bytes, 57 lines

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