1 // Protocol Buffers - Google's data interchange format 2 // Copyright 2008 Google Inc. All rights reserved. 3 // https://developers.google.com/protocol-buffers/ 4 // 5 // Redistribution and use in source and binary forms, with or without 6 // modification, are permitted provided that the following conditions are 7 // met: 8 // 9 // * Redistributions of source code must retain the above copyright 10 // notice, this list of conditions and the following disclaimer. 11 // * Redistributions in binary form must reproduce the above 12 // copyright notice, this list of conditions and the following disclaimer 13 // in the documentation and/or other materials provided with the 14 // distribution. 15 // * Neither the name of Google Inc. nor the names of its 16 // contributors may be used to endorse or promote products derived from 17 // this software without specific prior written permission. 18 // 19 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 22 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 23 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 24 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 25 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 29 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 31 package com.google.protobuf.util; 32 33 import com.google.protobuf.ListValue; 34 import com.google.protobuf.NullValue; 35 import com.google.protobuf.Struct; 36 import com.google.protobuf.Value; 37 38 /** Utilities to help create {@code google.protobuf.Value} messages. */ 39 public final class Values { 40 41 private static final Value NULL_VALUE = 42 Value.newBuilder().setNullValue(NullValue.NULL_VALUE).build(); 43 ofNull()44 public static Value ofNull() { 45 return NULL_VALUE; 46 } 47 48 /** Returns a Value object with number set to value. */ of(boolean value)49 public static Value of(boolean value) { 50 return Value.newBuilder().setBoolValue(value).build(); 51 } 52 53 /** Returns a Value object with number set to value. */ of(double value)54 public static Value of(double value) { 55 return Value.newBuilder().setNumberValue(value).build(); 56 } 57 58 /** Returns a Value object with string set to value. */ of(String value)59 public static Value of(String value) { 60 return Value.newBuilder().setStringValue(value).build(); 61 } 62 63 /** Returns a Value object with struct set to value. */ of(Struct value)64 public static Value of(Struct value) { 65 return Value.newBuilder().setStructValue(value).build(); 66 } 67 68 /** Returns a Value with ListValue set to value. */ of(ListValue value)69 public static Value of(ListValue value) { 70 return Value.newBuilder().setListValue(value).build(); 71 } 72 73 /** 74 * Returns a Value with ListValue set to the appending the result of calling {@link #of} on each 75 * element in the iterable. 76 */ of(Iterable<Value> values)77 public static Value of(Iterable<Value> values) { 78 Value.Builder valueBuilder = Value.newBuilder(); 79 ListValue.Builder listValue = valueBuilder.getListValueBuilder(); 80 listValue.addAllValues(values); 81 return valueBuilder.build(); 82 } 83 Values()84 private Values() {} 85 } 86