Coverage Report - com.jcabi.github.SmartJson
 
Classes in this File Line Coverage Branch Coverage Complexity
SmartJson
75%
18/24
36%
8/22
2.167
SmartJson$AjcClosure1
100%
1/1
N/A
2.167
SmartJson$AjcClosure3
100%
1/1
N/A
2.167
SmartJson$AjcClosure5
100%
1/1
N/A
2.167
SmartJson$AjcClosure7
100%
1/1
N/A
2.167
SmartJson$AjcClosure9
100%
1/1
N/A
2.167
 
 1  480
 /**
 2  
  * Copyright (c) 2013-2017, jcabi.com
 3  
  * All rights reserved.
 4  
  *
 5  
  * Redistribution and use in source and binary forms, with or without
 6  
  * modification, are permitted provided that the following conditions
 7  
  * are met: 1) Redistributions of source code must retain the above
 8  
  * copyright notice, this list of conditions and the following
 9  
  * disclaimer. 2) Redistributions in binary form must reproduce the above
 10  
  * copyright notice, this list of conditions and the following
 11  
  * disclaimer in the documentation and/or other materials provided
 12  
  * with the distribution. 3) Neither the name of the jcabi.com nor
 13  
  * the names of its contributors may be used to endorse or promote
 14  
  * products derived from this software without specific prior written
 15  
  * permission.
 16  
  *
 17  
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 18  
  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT
 19  
  * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 20  
  * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
 21  
  * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 22  
  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 23  
  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 24  
  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 25  
  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 26  
  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 27  
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 28  
  * OF THE POSSIBILITY OF SUCH DAMAGE.
 29  
  */
 30  
 package com.jcabi.github;
 31  
 
 32  
 import com.jcabi.aspects.Immutable;
 33  
 import com.jcabi.aspects.Loggable;
 34  
 import java.io.IOException;
 35  
 import javax.json.JsonNumber;
 36  
 import javax.json.JsonObject;
 37  
 import javax.json.JsonString;
 38  
 import javax.json.JsonValue;
 39  
 import javax.json.JsonValue.ValueType;
 40  
 import lombok.EqualsAndHashCode;
 41  
 import lombok.ToString;
 42  
 
 43  
 /**
 44  
  * Smart JSON (supplementary help class).
 45  
  *
 46  
  * @author Yegor Bugayenko (yegor@tpc2.com)
 47  
  * @version $Id: 688de4ed4c6d92c633f7800f526d4e0eac43f4c2 $
 48  
  * @since 0.5
 49  
  */
 50  
 @Immutable
 51  0
 @ToString
 52  
 @Loggable(Loggable.DEBUG)
 53  0
 @EqualsAndHashCode(of = "object")
 54  
 @SuppressWarnings("PMD.AvoidDuplicateLiterals")
 55  
 final class SmartJson {
 56  
 
 57  
     /**
 58  
      * Encapsulated JSON object.
 59  
      */
 60  
     private final transient JsonReadable object;
 61  
 
 62  
     /**
 63  
      * Public ctor.
 64  
      * @param obj Readable object
 65  
      */
 66  261
     SmartJson(final JsonReadable obj) {
 67  263
         this.object = obj;
 68  262
     }
 69  
 
 70  
     /**
 71  
      * Get its property as string.
 72  
      * @param name Name of the property
 73  
      * @return Value
 74  
      * @throws IOException If there is any I/O problem
 75  
      */
 76  
     public String text(
 77  
         final String name
 78  
     ) throws IOException {
 79  387
         return this.value(name, JsonString.class).getString();
 80  
     }
 81  
 
 82  
     /**
 83  
      * Get its property as number.
 84  
      * @param name Name of the property
 85  
      * @return Value
 86  
      * @throws IOException If there is any I/O problem
 87  
      */
 88  
     public int number(
 89  
         final String name
 90  
     ) throws IOException {
 91  48
         return this.value(name, JsonNumber.class).intValue();
 92  
     }
 93  
 
 94  
     /**
 95  
      * Get JSON.
 96  
      * @return JSON
 97  
      * @throws IOException If there is any I/O problem
 98  
      * @since 0.14
 99  
      */
 100  
     public JsonObject json() throws IOException {
 101  481
         return this.object.json();
 102  
     }
 103  
 
 104  
     /**
 105  
      * Get its property as custom type.
 106  
      * @param name Name of the property
 107  
      * @param type Type of result expected
 108  
      * @return Value
 109  
      * @throws IOException If there is any I/O problem
 110  
      * @param <T> Type expected
 111  
      */
 112  
     public <T> T value(
 113  
         final String name,
 114  
         final Class<T> type
 115  
     ) throws IOException {
 116  465
         final JsonObject json = this.json();
 117  232
         if (!json.containsKey(name)) {
 118  1
             throw new IllegalStateException(
 119  1
                 String.format(
 120  
                     "'%s' is absent in JSON: %s", name, json
 121  
                 )
 122  
             );
 123  
         }
 124  230
         final JsonValue value = json.get(name);
 125  230
         if (value == null) {
 126  0
             throw new IllegalStateException(
 127  0
                 String.format(
 128  
                     "'%s' is NULL in %s", name, json
 129  
                 )
 130  
             );
 131  
         }
 132  229
         if (value.getClass().isAssignableFrom(type)) {
 133  0
             throw new IllegalStateException(
 134  0
                 String.format(
 135  
                     "'%s' is not of type %s", name, type
 136  
                 )
 137  
             );
 138  
         }
 139  230
         return type.cast(value);
 140  
     }
 141  
 
 142  
     /**
 143  
      * Checks if a certain key is present
 144  
      *  AND its ValueType isn't ValueType.NULL.
 145  
      * @param name Name of the key which ValueType should be checked.
 146  
      * @return Returns <code>true</code> if key <code>name</code> is present
 147  
      *  and its ValueType isn't ValueType.NULL, <code>false</code> otherwise.
 148  
      * @throws IOException If there is any I/O problem
 149  
      */
 150  
     public boolean hasNotNull(
 151  
         final String name
 152  
     ) throws IOException {
 153  18
         final JsonValue value = this.object.json().get(name);
 154  18
         return value != null
 155  8
             && !ValueType.NULL.equals(value.getValueType());
 156  
     }
 157  
 }