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/*
* ============LICENSE_START=======================================================
* ONAP : ccsdk features
* ================================================================================
* Copyright (C) 2019 highstreet technologies GmbH Intellectual Property.
* All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*
*/
package org.onap.ccsdk.features.sdnr.wt.dataprovider.http.yangschema;
import java.io.IOException;
import java.text.ParseException;
import javax.servlet.Servlet;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.osgi.service.component.annotations.Component;
import org.osgi.service.http.whiteboard.propertytypes.HttpWhiteboardServletName;
import org.osgi.service.http.whiteboard.propertytypes.HttpWhiteboardServletPattern;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@HttpWhiteboardServletPattern("/yang-schema/*")
@HttpWhiteboardServletName("YangSchemaHttpServlet")
@Component(service = Servlet.class)
public class YangSchemaHttpServlet extends HttpServlet {
/**
*
*/
private static final long serialVersionUID = 1L;
private static final Logger LOG = LoggerFactory.getLogger(YangSchemaHttpServlet.class);
private static final String CACHEPATH = "cache/";
private static final String SCHEMACACHEPATH_PRIMARY = CACHEPATH + "schema/";
private final YangFileProvider fileProvider;
public YangSchemaHttpServlet() {
this.fileProvider = new YangFileProvider(CACHEPATH, SCHEMACACHEPATH_PRIMARY);
}
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
GetYangSchemaRequest request = null;
try {
request = new GetYangSchemaRequest(req);
} catch (Exception e) {
LOG.warn("bad request for yang-schema: {}", e);
}
if (request != null) {
int len;
LOG.debug("request for yang-schema for module {} with version {}", request.getModule(),
request.getVersion());
if (request.hasVersion()) {
boolean has = false;
try {
has = this.fileProvider.hasFileOrNewerForModule(request.getModule(), request.getVersion());
} catch (ParseException e1) {
LOG.warn("unable to parse revision: {}", e1);
}
if (has) {
try {
resp.setStatus(HttpServletResponse.SC_OK);
resp.setContentType("text/plain");
len = this.fileProvider.writeOutput(request.getModule(), request.getVersion(),
resp.getOutputStream());
resp.setContentLength(len);
} catch (ParseException e) {
LOG.warn("unable to parse revision: {}", e);
} catch (IOException | IllegalStateException e) {
LOG.warn("unable to write out module {}@{}: {}", request.getModule(), request.getVersion(), e);
}
} else {
try {
resp.sendError(HttpServletResponse.SC_NOT_FOUND);
} catch (IOException | IllegalStateException e) {
LOG.warn("unable to write out 404 res not found: {}", e);
}
}
} else if (this.fileProvider.hasFileForModule(request.getModule())) {
try {
resp.setStatus(HttpServletResponse.SC_OK);
resp.setContentType("text/plain");
len = this.fileProvider.writeOutput(request.getModule(), null, resp.getOutputStream());
resp.setContentLength(len);
} catch (ParseException e) {
LOG.warn(e.getMessage());
} catch (IOException | IllegalStateException e) {
LOG.warn("unable to write out module {}: {}", request.getModule(), e);
}
} else {
try {
resp.sendError(HttpServletResponse.SC_NOT_FOUND);
} catch (IOException | IllegalStateException e) {
LOG.warn("unable to write out 404 res not found: {}", e);
}
}
} else {
try {
resp.sendError(HttpServletResponse.SC_BAD_REQUEST);
} catch (IOException | IllegalStateException e) {
LOG.warn("unable to write out 400 bad request: {}", e);
}
}
}
}
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