144 lines
3.6 KiB
Java
144 lines
3.6 KiB
Java
/**
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* Copyright 2013 OpenSocial Foundation
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* Copyright 2013 International Business Machines Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Utility library for working with Activity Streams Actions
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* Requires underscorejs.
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*
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* @author James M Snell (jasnell@us.ibm.com)
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*/
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package com.ibm.common.geojson;
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import java.io.ObjectStreamException;
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import java.io.Serializable;
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import java.util.Iterator;
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import java.util.Map;
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import com.google.common.base.Objects;
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import com.google.common.base.Supplier;
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import com.google.common.collect.ImmutableMap;
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public final class CRS
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implements Iterable<String>, Serializable {
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public static final class Builder implements Supplier<CRS> {
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private String type;
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private ImmutableMap.Builder<String,Object> properties =
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ImmutableMap.builder();
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public Builder type(String type) {
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this.type = type;
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return this;
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}
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public Builder set(String name, Object value) {
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this.properties.put(name,value);
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return this;
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}
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public Builder set(Map<String,Object> properties) {
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this.properties.putAll(properties);
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return this;
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}
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public CRS get() {
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return new CRS(this);
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}
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}
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private final String type;
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private final Map<String,Object> properties;
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CRS(Builder builder) {
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this.type = builder.type;
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this.properties = builder.properties.build();
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}
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public String toString() {
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return Objects.toStringHelper(CRS.class)
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.addValue(type)
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.addValue(properties)
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.toString();
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}
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public int size() {
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return properties.size();
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}
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public String type() {
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return type;
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}
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public Map<String,Object> properties() {
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return properties;
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}
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@SuppressWarnings("unchecked")
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public <T>T get(String name) {
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return (T)properties.get(name);
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}
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public <T>T get(String name, T defaultValue) {
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T t = this.<T>get(name);
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return t != null ? t : defaultValue;
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}
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public boolean has(String name) {
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return properties.containsKey(name);
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}
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@Override
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public Iterator<String> iterator() {
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return properties.keySet().iterator();
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}
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public static final CRS named(String name) {
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return new CRS.Builder()
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.type("name")
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.set("name",name)
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.get();
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}
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public static final CRS linked(String href, String type) {
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return new CRS.Builder()
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.type("link")
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.set("href", href)
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.set("type", type)
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.get();
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}
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Object writeReplace() throws java.io.ObjectStreamException {
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return new SerializedForm(this);
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}
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private static class SerializedForm implements Serializable {
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private static final long serialVersionUID = -2060301713159936285L;
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private String type;
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private Map<String,Object> properties;
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protected SerializedForm(CRS obj) {
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this.type = obj.type;
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this.properties = obj.properties;
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}
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Object readResolve() throws ObjectStreamException {
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CRS.Builder builder = new CRS.Builder();
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builder.type(type);
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builder.properties.putAll(properties);
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return builder.get();
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}
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}
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}
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