package org.opendaylight.netconf.sal.rest.impl;
-import com.google.common.base.Preconditions;
import com.google.common.collect.ImmutableList;
import com.google.gson.stream.JsonReader;
+import com.google.gson.stream.JsonToken;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
+import java.io.StringReader;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
-import java.net.URI;
import java.util.ArrayList;
import java.util.List;
import javax.annotation.Nonnull;
-import javax.annotation.Nullable;
import javax.ws.rs.Consumes;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.MediaType;
import org.opendaylight.netconf.sal.restconf.impl.ControllerContext;
import org.opendaylight.netconf.sal.restconf.impl.InstanceIdentifierContext;
import org.opendaylight.netconf.sal.restconf.impl.PATCHContext;
+import org.opendaylight.netconf.sal.restconf.impl.PATCHEditOperation;
import org.opendaylight.netconf.sal.restconf.impl.PATCHEntity;
import org.opendaylight.netconf.sal.restconf.impl.RestconfDocumentedException;
import org.opendaylight.netconf.sal.restconf.impl.RestconfError.ErrorTag;
import org.opendaylight.netconf.sal.restconf.impl.RestconfError.ErrorType;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
+import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeStreamWriter;
import org.opendaylight.yangtools.yang.data.codec.gson.JsonParserStream;
import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNormalizedNodeStreamWriter;
import org.opendaylight.yangtools.yang.data.impl.schema.NormalizedNodeResult;
import org.opendaylight.yangtools.yang.data.impl.schema.ResultAlreadySetException;
-import org.opendaylight.yangtools.yang.data.util.AbstractModuleStringInstanceIdentifierCodec;
-import org.opendaylight.yangtools.yang.data.util.DataSchemaContextTree;
-import org.opendaylight.yangtools.yang.model.api.Module;
-import org.opendaylight.yangtools.yang.model.api.SchemaContext;
import org.opendaylight.yangtools.yang.model.api.SchemaNode;
import org.opendaylight.yangtools.yang.model.util.SchemaContextUtil;
import org.slf4j.Logger;
return new PATCHContext(path, resultList, patchId);
}
- private List<PATCHEntity> read(final JsonReader in, InstanceIdentifierContext path) throws
- IOException {
-
- boolean inEdit = false;
- boolean inValue = false;
- String operation = null;
- String target = null;
- String editId = null;
+ private List<PATCHEntity> read(final JsonReader in, InstanceIdentifierContext path) throws IOException {
List<PATCHEntity> resultCollection = new ArrayList<>();
+ StringModuleInstanceIdentifierCodec codec = new StringModuleInstanceIdentifierCodec(path.getSchemaContext());
+ JsonToPATCHBodyReader.PatchEdit edit = new JsonToPATCHBodyReader.PatchEdit();
while (in.hasNext()) {
switch (in.peek()) {
in.beginArray();
break;
case BEGIN_OBJECT:
- if (inEdit && operation != null & target != null & inValue) {
- StringModuleInstanceIdentifierCodec codec = new StringModuleInstanceIdentifierCodec(path
- .getSchemaContext());
-
- YangInstanceIdentifier targetII = codec.deserialize(codec.serialize(path
- .getInstanceIdentifier()) + target);
- SchemaNode targetSchemaNode = SchemaContextUtil.findDataSchemaNode(path.getSchemaContext(),
- codec.getDataContextTree().getChild(targetII).getDataSchemaNode().getPath()
- .getParent());
-
- final NormalizedNodeResult resultHolder = new NormalizedNodeResult();
- final NormalizedNodeStreamWriter writer = ImmutableNormalizedNodeStreamWriter.from(resultHolder);
-
- //keep on parsing json from place where target points
- final JsonParserStream jsonParser = JsonParserStream.create(writer, path.getSchemaContext(),
- targetSchemaNode);
- jsonParser.parse(in);
- resultCollection.add(new PATCHEntity(editId, operation, targetII.getParent(), resultHolder.getResult()));
- inValue = false;
-
- operation = null;
- target = null;
- in.endObject();
- } else {
- in.beginObject();
- }
+ in.beginObject();
break;
case END_DOCUMENT:
break;
case NAME:
- final String name = in.nextName();
-
- switch (name) {
- case "edit" : inEdit = true;
- break;
- case "operation" : operation = in.nextString();
- break;
- case "target" : target = in.nextString();
- break;
- case "value" : inValue = true;
- break;
- case "patch-id" : patchId = in.nextString();
- break;
- case "edit-id" : editId = in.nextString();
- break;
- }
+ parseByName(in.nextName(), edit, in, path, codec, resultCollection);
break;
case END_OBJECT:
in.endObject();
break;
- case END_ARRAY:
- in.endArray();
- break;
+ case END_ARRAY:
+ in.endArray();
+ break;
+
+ default:
+ break;
+ }
+ }
+
+ return ImmutableList.copyOf(resultCollection);
+ }
+
+ /**
+ * Switch value of parsed JsonToken.NAME and read edit definition or patch id
+ * @param name value of token
+ * @param edit PatchEdit instance
+ * @param in JsonReader reader
+ * @param path InstanceIdentifierContext context
+ * @param codec StringModuleInstanceIdentifierCodec codec
+ * @param resultCollection collection of parsed edits
+ * @throws IOException
+ */
+ private void parseByName(@Nonnull final String name, @Nonnull final PatchEdit edit,
+ @Nonnull final JsonReader in, @Nonnull final InstanceIdentifierContext path,
+ @Nonnull final StringModuleInstanceIdentifierCodec codec,
+ @Nonnull final List<PATCHEntity> resultCollection) throws IOException {
+ switch (name) {
+ case "edit" :
+ if (in.peek() == JsonToken.BEGIN_ARRAY) {
+ in.beginArray();
+
+ while (in.hasNext()) {
+ readEditDefinition(edit, in, path, codec);
+ resultCollection.add(prepareEditOperation(edit));
+ edit.clear();
+ }
+
+ in.endArray();
+ } else {
+ readEditDefinition(edit, in, path, codec);
+ resultCollection.add(prepareEditOperation(edit));
+ edit.clear();
+ }
+ break;
+ case "patch-id" :
+ this.patchId = in.nextString();
+ break;
default:
break;
+ }
+ }
+
+ /**
+ * Read one patch edit object from Json input
+ * @param edit PatchEdit instance to be filled with read data
+ * @param in JsonReader reader
+ * @param path InstanceIdentifierContext path context
+ * @param codec StringModuleInstanceIdentifierCodec codec
+ * @throws IOException
+ */
+ private void readEditDefinition(@Nonnull final PatchEdit edit, @Nonnull final JsonReader in,
+ @Nonnull final InstanceIdentifierContext path,
+ @Nonnull final StringModuleInstanceIdentifierCodec codec) throws IOException {
+ StringBuffer value = new StringBuffer();
+ in.beginObject();
+
+ while (in.hasNext()) {
+ final String editDefinition = in.nextName();
+ switch (editDefinition) {
+ case "edit-id" :
+ edit.setId(in.nextString());
+ break;
+ case "operation" :
+ edit.setOperation(in.nextString());
+ break;
+ case "target" :
+ edit.setTarget(codec.deserialize(codec.serialize(path.getInstanceIdentifier()) + in.nextString()));
+ edit.setTargetSchemaNode(SchemaContextUtil.findDataSchemaNode(path.getSchemaContext(),
+ codec.getDataContextTree().getChild(edit.getTarget()).getDataSchemaNode().getPath()
+ .getParent()));
+ break;
+ case "value" :
+ // save data defined in value node for next (later) processing, because target needs to be read
+ // always first and there is no ordering in Json input
+ readValueNode(value, in);
+ break;
+ default:
+ break;
}
}
- return ImmutableList.copyOf(resultCollection);
+ in.endObject();
+
+ // read saved data to normalized node when target schema is already known
+ edit.setData(readEditData(new JsonReader(new StringReader(value.toString())), edit.getTargetSchemaNode(), path));
}
- private class StringModuleInstanceIdentifierCodec extends AbstractModuleStringInstanceIdentifierCodec {
+ /**
+ * Parse data defined in value node and saves it to buffer
+ * @param value Buffer to read value node
+ * @param in JsonReader reader
+ * @throws IOException
+ */
+ private void readValueNode(@Nonnull final StringBuffer value, @Nonnull final JsonReader in) throws IOException {
+ in.beginObject();
+ value.append("{");
+
+ value.append("\"" + in.nextName() + "\"" + ":");
+
+ if (in.peek() == JsonToken.BEGIN_ARRAY) {
+ in.beginArray();
+ value.append("[");
+
+ while (in.hasNext()) {
+ readValueObject(value, in);
+ if (in.peek() != JsonToken.END_ARRAY) {
+ value.append(",");
+ }
+ }
+
+ in.endArray();
+ value.append("]");
+ } else {
+ readValueObject(value, in);
+ }
+
+ in.endObject();
+ value.append("}");
+ }
- private final DataSchemaContextTree dataContextTree;
- private final SchemaContext context;
+ /**
+ * Parse one value object of data and saves it to buffer
+ * @param value Buffer to read value object
+ * @param in JsonReader reader
+ * @throws IOException
+ */
+ private void readValueObject(@Nonnull final StringBuffer value, @Nonnull final JsonReader in) throws IOException {
+ in.beginObject();
+ value.append("{");
+
+ while (in.hasNext()) {
+ value.append("\"" + in.nextName() + "\"");
+ value.append(":");
+ value.append("\"" + in.nextString() + "\"");
+ if (in.peek() != JsonToken.END_OBJECT) {
+ value.append(",");
+ }
+ }
+
+ in.endObject();
+ value.append("}");
+ }
+
+ /**
+ * Read patch edit data defined in value node to NormalizedNode
+ * @param in reader JsonReader reader
+ * @return NormalizedNode representing data
+ */
+ private NormalizedNode readEditData(@Nonnull final JsonReader in, @Nonnull SchemaNode targetSchemaNode,
+ @Nonnull InstanceIdentifierContext path) {
+ final NormalizedNodeResult resultHolder = new NormalizedNodeResult();
+ final NormalizedNodeStreamWriter writer = ImmutableNormalizedNodeStreamWriter.from(resultHolder);
+ JsonParserStream.create(writer, path.getSchemaContext(), targetSchemaNode).parse(in);
+
+ return resultHolder.getResult();
+ }
+
+ /**
+ * Prepare PATCHEntity from PatchEdit instance when it satisfies conditions, otherwise throws exception
+ * @param edit Instance of PatchEdit
+ * @return PATCHEntity
+ */
+ private PATCHEntity prepareEditOperation(@Nonnull final PatchEdit edit) {
+ if (edit.getOperation() != null && edit.getTargetSchemaNode() != null
+ && checkDataPresence(edit.getOperation(), (edit.getData() != null))) {
+ if (isPatchOperationWithValue(edit.getOperation())) {
+ return new PATCHEntity(edit.getId(), edit.getOperation(), edit.getTarget().getParent(), edit.getData());
+ } else {
+ return new PATCHEntity(edit.getId(), edit.getOperation(), edit.getTarget());
+ }
+ }
+
+ throw new RestconfDocumentedException("Error parsing input", ErrorType.PROTOCOL, ErrorTag.MALFORMED_MESSAGE);
+ }
+
+ /**
+ * Check if data is present when operation requires it and not present when operation data is not allowed
+ * @param operation Name of operation
+ * @param hasData Data in edit are present/not present
+ * @return true if data is present when operation requires it or if there are no data when operation does not
+ * allow it, false otherwise
+ */
+ private boolean checkDataPresence(@Nonnull final String operation, final boolean hasData) {
+ if (isPatchOperationWithValue(operation)) {
+ if (hasData) {
+ return true;
+ } else {
+ return false;
+ }
+ } else {
+ if (!hasData) {
+ return true;
+ } else {
+ return false;
+ }
+ }
+ }
+
+ /**
+ * Check if operation requires data to be specified
+ * @param operation Name of the operation to be checked
+ * @return true if operation requires data, false otherwise
+ */
+ private boolean isPatchOperationWithValue(@Nonnull final String operation) {
+ switch (PATCHEditOperation.valueOf(operation.toUpperCase())) {
+ case CREATE:
+ case MERGE:
+ case REPLACE:
+ case INSERT:
+ return true;
+ default:
+ return false;
+ }
+ }
+
+ /**
+ * Helper class representing one patch edit
+ */
+ private static final class PatchEdit {
+ private String id;
+ private String operation;
+ private YangInstanceIdentifier target;
+ private SchemaNode targetSchemaNode;
+ private NormalizedNode data;
+
+ public String getId() {
+ return id;
+ }
+
+ public void setId(String id) {
+ this.id = id;
+ }
+
+ public String getOperation() {
+ return operation;
+ }
+
+ public void setOperation(String operation) {
+ this.operation = operation;
+ }
+
+ public YangInstanceIdentifier getTarget() {
+ return target;
+ }
+
+ public void setTarget(YangInstanceIdentifier target) {
+ this.target = target;
+ }
+
+ public SchemaNode getTargetSchemaNode() {
+ return targetSchemaNode;
+ }
- StringModuleInstanceIdentifierCodec(SchemaContext context) {
- this.context = Preconditions.checkNotNull(context);
- this.dataContextTree = DataSchemaContextTree.from(context);
+ public void setTargetSchemaNode(SchemaNode targetSchemaNode) {
+ this.targetSchemaNode = targetSchemaNode;
}
- @Override
- protected Module moduleForPrefix(@Nonnull String prefix) {
- return context.findModuleByName(prefix, null);
+ public NormalizedNode getData() {
+ return data;
}
- @Nonnull
- @Override
- protected DataSchemaContextTree getDataContextTree() {
- return dataContextTree;
+ public void setData(NormalizedNode data) {
+ this.data = data;
}
- @Nullable
- @Override
- protected String prefixForNamespace(@Nonnull URI namespace) {
- final Module module = context.findModuleByNamespaceAndRevision(namespace, null);
- return module == null ? null : module.getName();
+ public void clear() {
+ id = null;
+ operation = null;
+ target = null;
+ targetSchemaNode = null;
+ data = null;
}
}
}
Code Review / netconf.git / blobdiff