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/*
* Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*/
package org.opendaylight.netconf.sal.rest.impl;
import com.google.gson.stream.JsonWriter;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.nio.charset.StandardCharsets;
import java.util.List;
import javax.ws.rs.Produces;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.ext.MessageBodyWriter;
import javax.ws.rs.ext.Provider;
import org.opendaylight.netconf.sal.rest.api.Draft02;
import org.opendaylight.netconf.sal.rest.api.RestconfService;
import org.opendaylight.restconf.common.errors.RestconfError;
import org.opendaylight.restconf.common.patch.PatchStatusContext;
import org.opendaylight.restconf.common.patch.PatchStatusEntity;
import org.opendaylight.yangtools.yang.data.codec.gson.JsonWriterFactory;
@Provider
@Produces({ Draft02.MediaTypes.PATCH_STATUS + RestconfService.JSON })
public class PatchJsonBodyWriter implements MessageBodyWriter<PatchStatusContext> {
@Override
public boolean isWriteable(final Class<?> type, final Type genericType,
final Annotation[] annotations, final MediaType mediaType) {
return type.equals(PatchStatusContext.class);
}
@Override
public long getSize(final PatchStatusContext patchStatusContext, final Class<?> type, final Type genericType,
final Annotation[] annotations, final MediaType mediaType) {
return -1;
}
@Override
public void writeTo(final PatchStatusContext patchStatusContext, final Class<?> type, final Type genericType,
final Annotation[] annotations, final MediaType mediaType,
final MultivaluedMap<String, Object> httpHeaders, final OutputStream entityStream)
throws IOException, WebApplicationException {
final JsonWriter jsonWriter = createJsonWriter(entityStream);
jsonWriter.beginObject().name("ietf-yang-patch:yang-patch-status");
jsonWriter.beginObject();
jsonWriter.name("patch-id").value(patchStatusContext.getPatchId());
if (patchStatusContext.isOk()) {
reportSuccess(jsonWriter);
} else {
if (patchStatusContext.getGlobalErrors() != null) {
reportErrors(patchStatusContext.getGlobalErrors(), jsonWriter);
}
jsonWriter.name("edit-status");
jsonWriter.beginObject();
jsonWriter.name("edit");
jsonWriter.beginArray();
for (final PatchStatusEntity patchStatusEntity : patchStatusContext.getEditCollection()) {
jsonWriter.beginObject();
jsonWriter.name("edit-id").value(patchStatusEntity.getEditId());
if (patchStatusEntity.getEditErrors() != null) {
reportErrors(patchStatusEntity.getEditErrors(), jsonWriter);
} else {
if (patchStatusEntity.isOk()) {
reportSuccess(jsonWriter);
}
}
jsonWriter.endObject();
}
jsonWriter.endArray();
jsonWriter.endObject();
}
jsonWriter.endObject();
jsonWriter.endObject();
jsonWriter.flush();
}
private static void reportSuccess(final JsonWriter jsonWriter) throws IOException {
jsonWriter.name("ok").beginArray().nullValue().endArray();
}
private static void reportErrors(final List<RestconfError> errors, final JsonWriter jsonWriter) throws IOException {
jsonWriter.name("errors");
jsonWriter.beginObject();
jsonWriter.name("error");
jsonWriter.beginArray();
for (final RestconfError restconfError : errors) {
jsonWriter.beginObject();
jsonWriter.name("error-type").value(restconfError.getErrorType().elementBody());
jsonWriter.name("error-tag").value(restconfError.getErrorTag().elementBody());
// optional node
if (restconfError.getErrorPath() != null) {
jsonWriter.name("error-path").value(restconfError.getErrorPath().toString());
}
// optional node
if (restconfError.getErrorMessage() != null) {
jsonWriter.name("error-message").value(restconfError.getErrorMessage());
}
// optional node
if (restconfError.getErrorInfo() != null) {
jsonWriter.name("error-info").value(restconfError.getErrorInfo());
}
jsonWriter.endObject();
}
jsonWriter.endArray();
jsonWriter.endObject();
}
private static JsonWriter createJsonWriter(final OutputStream entityStream) {
return JsonWriterFactory.createJsonWriter(new OutputStreamWriter(entityStream, StandardCharsets.UTF_8));
}
}
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