--- /dev/null
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Copyright (C) 2017 Amdocs
+ * =============================================================================
+ * 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.appc.util;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.io.PrintStream;
+import java.io.PrintWriter;
+import java.io.Reader;
+import java.io.Writer;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Enumeration;
+import java.util.InvalidPropertiesFormatException;
+import java.util.Map;
+import java.util.Properties;
+import java.util.Set;
+
+/**
+ * This utility class is used to wrap a properties object and to delegate all read operations to the property object,
+ * while disallowing any write or modification to the property object.
+ *
+ */
+public class UnmodifiableProperties extends Properties implements Cloneable {
+
+ /**
+ * Serial number
+ */
+ private static final long serialVersionUID = 1L;
+
+ private static final String PROPERTY_CANNOT_BE_MODIFIED_MSG = "Property cannot be modified!";
+
+ /**
+ * The properties object which we are wrapping
+ */
+ private Properties properties;
+
+ /**
+ * Create the unmodifiable wrapper around the provided properties object
+ *
+ * @param properties
+ * The properties to be wrapped and protected from modification
+ */
+ public UnmodifiableProperties(Properties properties) {
+ this.properties = properties;
+ }
+
+ /**
+ * @see java.util.Hashtable#clear()
+ */
+ @Override
+ public synchronized void clear() {
+ throw new UnsupportedOperationException(PROPERTY_CANNOT_BE_MODIFIED_MSG);
+ }
+
+ /**
+ * @see java.util.Hashtable#clone()
+ */
+ // @sonar:off
+ @Override
+ public synchronized Object clone() {
+ throw new UnsupportedOperationException(PROPERTY_CANNOT_BE_MODIFIED_MSG);
+ }
+
+ // @sonar:on
+
+ /**
+ * @see java.util.Hashtable#contains(java.lang.Object)
+ */
+ @Override
+ public synchronized boolean contains(Object value) {
+ return properties.contains(value);
+ }
+
+ /**
+ * @see java.util.Hashtable#containsKey(java.lang.Object)
+ */
+ @Override
+ public synchronized boolean containsKey(Object key) {
+ return properties.containsKey(key);
+ }
+
+ /**
+ * @see java.util.Hashtable#containsValue(java.lang.Object)
+ */
+ @Override
+ public boolean containsValue(Object value) {
+ return properties.containsValue(value);
+ }
+
+ /**
+ * @see java.util.Hashtable#elements()
+ */
+ @Override
+ public synchronized Enumeration<Object> elements() {
+ return properties.elements();
+ }
+
+ /**
+ * @see java.util.Hashtable#entrySet()
+ */
+ @Override
+ public Set<java.util.Map.Entry<Object, Object>> entrySet() {
+ return Collections.unmodifiableSet(properties.entrySet());
+ }
+
+ /**
+ * @see java.util.Hashtable#equals(java.lang.Object)
+ */
+ @Override
+ public synchronized boolean equals(Object o) {
+ return properties.equals(o);
+ }
+
+ /**
+ * @see java.util.Hashtable#get(java.lang.Object)
+ */
+ @Override
+ public synchronized Object get(Object key) {
+ return properties.get(key);
+ }
+
+ /**
+ * @see java.util.Properties#getProperty(java.lang.String)
+ */
+ @Override
+ public String getProperty(String key) {
+ return properties.getProperty(key);
+ }
+
+ /**
+ * @see java.util.Properties#getProperty(java.lang.String, java.lang.String)
+ */
+ @Override
+ public String getProperty(String key, String defaultValue) {
+ return properties.getProperty(key, defaultValue);
+ }
+
+ /**
+ * @see java.util.Hashtable#hashCode()
+ */
+ @Override
+ public synchronized int hashCode() {
+ return properties.hashCode();
+ }
+
+ /**
+ * @see java.util.Hashtable#isEmpty()
+ */
+ @Override
+ public synchronized boolean isEmpty() {
+ return properties.isEmpty();
+ }
+
+ /**
+ * @see java.util.Hashtable#keys()
+ */
+ @Override
+ public synchronized Enumeration<Object> keys() {
+ return properties.keys();
+ }
+
+ /**
+ * @see java.util.Hashtable#keySet()
+ */
+ @Override
+ public Set<Object> keySet() {
+ return Collections.unmodifiableSet(properties.keySet());
+ }
+
+ /**
+ * @see java.util.Properties#list(java.io.PrintStream)
+ */
+ @Override
+ public void list(PrintStream out) {
+ properties.list(out);
+ }
+
+ /**
+ * @see java.util.Properties#list(java.io.PrintWriter)
+ */
+ @Override
+ public void list(PrintWriter out) {
+ properties.list(out);
+ }
+
+ /**
+ * @see java.util.Properties#load(java.io.InputStream)
+ */
+ @Override
+ public synchronized void load(InputStream inStream) throws IOException {
+ throw new UnsupportedOperationException(PROPERTY_CANNOT_BE_MODIFIED_MSG);
+ }
+
+ /**
+ * @see java.util.Properties#load(java.io.Reader)
+ */
+ @Override
+ public synchronized void load(Reader reader) throws IOException {
+ throw new UnsupportedOperationException(PROPERTY_CANNOT_BE_MODIFIED_MSG);
+ }
+
+ /**
+ * @see java.util.Properties#loadFromXML(java.io.InputStream)
+ */
+ @Override
+ public synchronized void loadFromXML(InputStream in) throws IOException, InvalidPropertiesFormatException {
+ throw new UnsupportedOperationException(PROPERTY_CANNOT_BE_MODIFIED_MSG);
+ }
+
+ /**
+ * @see java.util.Properties#propertyNames()
+ */
+ @Override
+ public Enumeration<?> propertyNames() {
+ return properties.propertyNames();
+ }
+
+ /**
+ * @see java.util.Hashtable#put(java.lang.Object, java.lang.Object)
+ */
+ @Override
+ public synchronized Object put(Object key, Object value) {
+ throw new UnsupportedOperationException(PROPERTY_CANNOT_BE_MODIFIED_MSG);
+ }
+
+ /**
+ * @see java.util.Hashtable#putAll(java.util.Map)
+ */
+ @Override
+ public synchronized void putAll(Map<? extends Object, ? extends Object> t) {
+ throw new UnsupportedOperationException(PROPERTY_CANNOT_BE_MODIFIED_MSG);
+ }
+
+ /**
+ * @see java.util.Hashtable#rehash()
+ */
+ @Override
+ protected void rehash() {
+ throw new UnsupportedOperationException(PROPERTY_CANNOT_BE_MODIFIED_MSG);
+ }
+
+ /**
+ * @see java.util.Hashtable#remove(java.lang.Object)
+ */
+ @Override
+ public synchronized Object remove(Object key) {
+ throw new UnsupportedOperationException(PROPERTY_CANNOT_BE_MODIFIED_MSG);
+ }
+
+ /**
+ * @see java.util.Properties#save(java.io.OutputStream, java.lang.String)
+ */
+ @Override
+ @Deprecated
+ public synchronized void save(OutputStream out, String comments) {
+ properties.save(out, comments);
+ }
+
+ /**
+ * @see java.util.Properties#setProperty(java.lang.String, java.lang.String)
+ */
+ @Override
+ public synchronized Object setProperty(String key, String value) {
+ throw new UnsupportedOperationException(PROPERTY_CANNOT_BE_MODIFIED_MSG);
+ }
+
+ /**
+ * @see java.util.Hashtable#size()
+ */
+ @Override
+ public synchronized int size() {
+ return properties.size();
+ }
+
+ /**
+ * @see java.util.Properties#store(java.io.OutputStream, java.lang.String)
+ */
+ @Override
+ public void store(OutputStream out, String comments) throws IOException {
+ properties.store(out, comments);
+ }
+
+ /**
+ * @see java.util.Properties#store(java.io.Writer, java.lang.String)
+ */
+ @Override
+ public void store(Writer writer, String comments) throws IOException {
+ properties.store(writer, comments);
+ }
+
+ /**
+ * @see java.util.Properties#storeToXML(java.io.OutputStream, java.lang.String)
+ */
+ @Override
+ public synchronized void storeToXML(OutputStream os, String comment) throws IOException {
+ properties.storeToXML(os, comment);
+ }
+
+ /**
+ * @see java.util.Properties#storeToXML(java.io.OutputStream, java.lang.String, java.lang.String)
+ */
+ @Override
+ public synchronized void storeToXML(OutputStream os, String comment, String encoding) throws IOException {
+ properties.storeToXML(os, comment, encoding);
+ }
+
+ /**
+ * @see java.util.Properties#stringPropertyNames()
+ */
+ @Override
+ public Set<String> stringPropertyNames() {
+ return properties.stringPropertyNames();
+ }
+
+ /**
+ * @see java.util.Hashtable#toString()
+ */
+ @Override
+ public synchronized String toString() {
+ return properties.toString();
+ }
+
+ /**
+ * @see java.util.Hashtable#values()
+ */
+ @Override
+ public Collection<Object> values() {
+ return Collections.unmodifiableCollection(properties.values());
+ }
+}
Code Review / appc.git / blobdiff