| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.apache.jackrabbit.oak.spi.state; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| |
| import org.apache.jackrabbit.oak.api.Blob; |
| import org.apache.jackrabbit.oak.api.PropertyState; |
| import org.apache.jackrabbit.oak.api.Type; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * A node builder that throws an {@link UnsupportedOperationException} on |
| * all attempts to modify the given base state. |
| */ |
| public class ReadOnlyBuilder implements NodeBuilder { |
| |
| @NotNull |
| private final NodeState state; |
| |
| public ReadOnlyBuilder(@NotNull NodeState state) { |
| this.state = checkNotNull(state); |
| } |
| |
| protected RuntimeException unsupported() { |
| return new UnsupportedOperationException("This builder is read-only."); |
| } |
| |
| @Override |
| public boolean exists() { |
| return state.exists(); |
| } |
| |
| @Override |
| public boolean isNew() { |
| return false; |
| } |
| |
| @Override |
| public boolean isNew(String name) { |
| return false; |
| } |
| |
| @Override |
| public boolean isModified() { |
| return false; |
| } |
| |
| @Override |
| public boolean isReplaced() { |
| return false; |
| } |
| |
| @Override |
| public boolean isReplaced(String name) { |
| return false; |
| } |
| |
| @Override @NotNull |
| public NodeState getNodeState() { |
| return state; |
| } |
| |
| @Override @NotNull |
| public NodeState getBaseState() { |
| return state; |
| } |
| |
| @Override |
| public long getChildNodeCount(long max) { |
| return state.getChildNodeCount(max); |
| } |
| |
| @Override |
| public boolean hasChildNode(@NotNull String name) { |
| return state.hasChildNode(name); |
| } |
| |
| @NotNull |
| @Override |
| public Iterable<String> getChildNodeNames() { |
| return state.getChildNodeNames(); |
| } |
| |
| @Override @NotNull |
| public NodeBuilder setChildNode(@NotNull String name, @NotNull NodeState nodeState) { |
| throw unsupported(); |
| } |
| |
| @Override |
| public boolean remove() { |
| throw unsupported(); |
| } |
| |
| @Override |
| public boolean moveTo(@NotNull NodeBuilder newParent, @NotNull String newName) { |
| throw unsupported(); |
| } |
| |
| @Override |
| public long getPropertyCount() { |
| return state.getPropertyCount(); |
| } |
| |
| @NotNull |
| @Override |
| public Iterable<? extends PropertyState> getProperties() { |
| return state.getProperties(); |
| } |
| |
| @Override |
| public boolean hasProperty(String name) { |
| return state.hasProperty(name); |
| } |
| |
| @Override |
| public PropertyState getProperty(String name) { |
| return state.getProperty(name); |
| } |
| |
| @Override |
| public boolean getBoolean(@NotNull String name) { |
| return state.getBoolean(name); |
| } |
| |
| @Override @Nullable |
| public String getString(@NotNull String name) { |
| return state.getString(name); |
| } |
| |
| @Override @Nullable |
| public String getName(@NotNull String name) { |
| return state.getName(name); |
| } |
| |
| @Override @NotNull |
| public Iterable<String> getNames(@NotNull String name) { |
| return state.getNames(name); |
| } |
| |
| @Override @NotNull |
| public NodeBuilder removeProperty(String name) { |
| throw unsupported(); |
| } |
| |
| @NotNull |
| @Override |
| public NodeBuilder setProperty(@NotNull PropertyState property) { |
| throw unsupported(); |
| } |
| |
| @NotNull |
| @Override |
| public <T> NodeBuilder setProperty(String name, @NotNull T value) { |
| throw unsupported(); |
| } |
| |
| @NotNull |
| @Override |
| public <T> NodeBuilder setProperty(String name, @NotNull T value, Type<T> type) { |
| throw unsupported(); |
| } |
| |
| @NotNull |
| @Override |
| public ReadOnlyBuilder child(@NotNull String name) { |
| NodeState child = state.getChildNode(name); |
| if (child.exists()) { |
| return new ReadOnlyBuilder(child); |
| } else { |
| throw unsupported(); |
| } |
| } |
| |
| @Override @NotNull |
| public NodeBuilder getChildNode(@NotNull String name) { |
| return new ReadOnlyBuilder(state.getChildNode(name)); |
| } |
| |
| @Override @NotNull |
| public NodeBuilder setChildNode(@NotNull String name) { |
| throw unsupported(); |
| } |
| |
| @Override |
| public Blob createBlob(InputStream stream) throws IOException { |
| throw unsupported(); |
| } |
| |
| } |