#118

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<a href="https://github.com/apache/datasketches-java/commit/<a class=hub.com/apache/datasketches-java/commit/1675f57acd21e9404128f76ed7c2c20d47e7375f">1675f57ac<a href="https://github.com/apache/datasketches-java/commit/1675f57acd21e9404128f76ed7c2c20d47e7375f">">Merge </a><a class="double-link" href="https://github.com/apache/datasketches-java/commit/<a class="double-link" href="https://github.com/apache/datasketches-java/commit/e1731724c8c64d1644817f9c149aa04208bc853d">e1731724c</a>">e1731724c</a><a href="https://github.com/apache/datasketches-java/commit/1675f57acd21e9404128f76ed7c2c20d47e7375f"> into d48d3a482">d48d3a482</a>

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/src/main/java/org/apache/datasketches/SetOperationCornerCases.java

/*
 * 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.datasketches;

import java.util.HashMap;
import java.util.Map;

public class SetOperationCornerCases {
  private static final long MAX = Long.MAX_VALUE;

  public enum IntersectResult {
    EMPTY_1_0_T(1, "Empty{1.0, 0, T}"),
    DEGEN_MIN_0_F(2, "Degenerate{MinTheta, 0, F}"),
    FULL_INTER(6, "Full Intersect");

    private int interRid;
    private String desc;

    private IntersectResult(final int interRid, final String desc) {
      this.interRid = interRid;
      this.desc = desc;
    }

    public int getInterResultId() {
      return interRid;
    }

    public String getDesc() {
      return desc;
    }
  }

  public enum AnotbResult {
    EMPTY_1_0_T(1, "Empty{1.0, 0, T}"),
    DEGEN_MIN_0_F(2, "Degenerate{MinTheta, 0, F}"),
    DEGEN_THA_0_F(3, "Degenerate{ThetaA, 0, F}"),
    SKA_TRIM(4, "Trim Sketch A by MinTheta"),
    SKETCH_A(5, "Sketch A Exactly"),
    FULL_ANOTB(7, "Full AnotB");

    private int aNbRid;
    private String desc;

    private AnotbResult(final int aNbRid, final String desc) {
      this.aNbRid = aNbRid;
      this.desc = desc;
    }

    public int getAnotbResultId() {
      return aNbRid;
    }

    public String getDesc() {
      return desc;
    }
  }

  public enum CornerCase {
    Empty_Empty(055, "A{ 1.0, 0, T} ; B{ 1.0, 0, T}",
        IntersectResult.EMPTY_1_0_T, AnotbResult.EMPTY_1_0_T),
    Empty_Exact(056, "A{ 1.0, 0, T} ; B{ 1.0,>0, F}",
        IntersectResult.EMPTY_1_0_T, AnotbResult.EMPTY_1_0_T),
    Empty_Estimation(052, "A{ 1.0, 0, T} ; B{<1.0,>0, F}",
        IntersectResult.EMPTY_1_0_T, AnotbResult.EMPTY_1_0_T),
    Empty_Degen(050, "A{ 1.0, 0, T} ; B{<1.0, 0, F}",
        IntersectResult.EMPTY_1_0_T, AnotbResult.EMPTY_1_0_T),

    Exact_Empty(065, "A{ 1.0,>0, F} ; B{ 1.0, 0, T}",
        IntersectResult.EMPTY_1_0_T, AnotbResult.SKETCH_A),
    Exact_Exact(066, "A{ 1.0,>0, F} ; B{ 1.0,>0, F}",
        IntersectResult.FULL_INTER, AnotbResult.FULL_ANOTB),
    Exact_Estimation(062, "A{ 1.0,>0, F} ; B{<1.0,>0, F}",
        IntersectResult.FULL_INTER, AnotbResult.FULL_ANOTB),
    Exact_Degen(060, "A{ 1.0,>0, F} ; B{<1.0, 0, F}",
        IntersectResult.DEGEN_MIN_0_F, AnotbResult.SKA_TRIM),

    Estimation_Empty(025, "A{<1.0,>0, F} ; B{ 1.0, 0, T}",
        IntersectResult.EMPTY_1_0_T, AnotbResult.SKETCH_A),
    Estimation_Exact(026, "A{<1.0,>0, F} ; B{ 1.0,>0, F}",
        IntersectResult.FULL_INTER, AnotbResult.FULL_ANOTB),
    Estimation_Estimation(022, "A{<1.0,>0, F} ; B{<1.0,>0, F}",
        IntersectResult.FULL_INTER, AnotbResult.FULL_ANOTB),
    Estimation_Degen(020, "A{<1.0,>0, F} ; B{<1.0, 0, F}",
        IntersectResult.DEGEN_MIN_0_F, AnotbResult.SKA_TRIM),

    Degen_Empty(005, "A{<1.0, 0, F} ; B{ 1.0, 0, T}",
        IntersectResult.EMPTY_1_0_T, AnotbResult.DEGEN_THA_0_F),
    Degen_Exact(006, "A{<1.0, 0, F} ; B{ 1.0,>0, F}",
        IntersectResult.DEGEN_MIN_0_F, AnotbResult.DEGEN_THA_0_F),
    Degen_Estimation(002, "A{<1.0, 0, F} ; B{<1.0,>0, F}",
        IntersectResult.DEGEN_MIN_0_F, AnotbResult.DEGEN_MIN_0_F),
    Degen_Degen(000, "A{<1.0, 0, F} ; B{<1.0, 0, F}",
        IntersectResult.DEGEN_MIN_0_F, AnotbResult.DEGEN_MIN_0_F);

    private static final Map<Integer, CornerCase> idToCornerCaseMap = new HashMap<>();
    private int id;
    private String inputStr;
    private IntersectResult interResult;
    private AnotbResult anotbResult;

    static {
      for (final CornerCase cc : values()) {
        idToCornerCaseMap.put(cc.getId(), cc);
      }
    }

    private CornerCase(final int id, final String desc,
        final IntersectResult interResult, final AnotbResult anotbResult) {
      this.id = id;
      this.inputStr = desc;
      this.interResult = interResult;
      this.anotbResult = anotbResult;
    }

    public int getId() {
      return id;
    }

    public String getDesc() {
      return inputStr;
    }

    public IntersectResult getInterResult() {
      return interResult;
    }

    public AnotbResult getAnotbResult() {
      return anotbResult;
    }

    //See checkById test in /tuple/MiscTest.
    public static CornerCase idToCornerCase(final int id) {
      final CornerCase cc = idToCornerCaseMap.get(id);
      if (cc == null) {
        throw new SketchesArgumentException("Possible Corruption: Illegal CornerCase ID: " + Integer.toOctalString(id));
      }
      return cc;
    }
  } //end of enum CornerCase

  public static int createCornerCaseId(
      final long thetaLongA, final int countA, final boolean emptyA,
      final long thetaLongB, final int countB, final boolean emptyB) {
    return (sketchStateId(emptyA, countA, thetaLongA) << 3) | sketchStateId(emptyB, countB, thetaLongB);
  }

  public static int sketchStateId(final boolean isEmpty, final int numRetained, final long theta) {
    // assume theta = MAX if empty
    return (((theta == MAX) || isEmpty) ? 4 : 0) | ((numRetained > 0) ? 2 : 0) | (isEmpty ? 1 : 0);
  }
}

1	/*
2	* Licensed to the Apache Software Foundation (ASF) under one
3	* or more contributor license agreements. See the NOTICE file
4	* distributed with this work for additional information
5	* regarding copyright ownership. The ASF licenses this file
6	* to you under the Apache License, Version 2.0 (the
7	* "License"); you may not use this file except in compliance
8	* with the License. You may obtain a copy of the License at
9	*
10	* http://www.apache.org/licenses/LICENSE-2.0
11	*
12	* Unless required by applicable law or agreed to in writing,
13	* software distributed under the License is distributed on an
14	* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15	* KIND, either express or implied. See the License for the
16	* specific language governing permissions and limitations
17	* under the License.
18	*/
19
20	package org.apache.datasketches;
21
22	import java.util.HashMap;
23	import java.util.Map;
24
25	public class SetOperationCornerCases {	×
26	private static final long MAX = Long.MAX_VALUE;
27
28	public enum IntersectResult {	1✔
29	EMPTY_1_0_T(1, "Empty{1.0, 0, T}"),	1✔
30	DEGEN_MIN_0_F(2, "Degenerate{MinTheta, 0, F}"),	1✔
31	FULL_INTER(6, "Full Intersect");	1✔
32
33	private int interRid;
34	private String desc;
35
36	private IntersectResult(final int interRid, final String desc) {	1✔
37	this.interRid = interRid;	1✔
38	this.desc = desc;	1✔
39	}	1✔
40
41	public int getInterResultId() {
42	return interRid;	×
43	}
44
45	public String getDesc() {
46	return desc;	×
47	}
48	}
49
50	public enum AnotbResult {	1✔
51	EMPTY_1_0_T(1, "Empty{1.0, 0, T}"),	1✔
52	DEGEN_MIN_0_F(2, "Degenerate{MinTheta, 0, F}"),	1✔
53	DEGEN_THA_0_F(3, "Degenerate{ThetaA, 0, F}"),	1✔
54	SKA_TRIM(4, "Trim Sketch A by MinTheta"),	1✔
55	SKETCH_A(5, "Sketch A Exactly"),	1✔
56	FULL_ANOTB(7, "Full AnotB");	1✔
57
58	private int aNbRid;
59	private String desc;
60
61	private AnotbResult(final int aNbRid, final String desc) {	1✔
62	this.aNbRid = aNbRid;	1✔
63	this.desc = desc;	1✔
64	}	1✔
65
66	public int getAnotbResultId() {
67	return aNbRid;	×
68	}
69
70	public String getDesc() {
71	return desc;	×
72	}
73	}
74
75	public enum CornerCase {	1✔
76	Empty_Empty(055, "A{ 1.0, 0, T} ; B{ 1.0, 0, T}",	1✔
77	IntersectResult.EMPTY_1_0_T, AnotbResult.EMPTY_1_0_T),
78	Empty_Exact(056, "A{ 1.0, 0, T} ; B{ 1.0,>0, F}",	1✔
79	IntersectResult.EMPTY_1_0_T, AnotbResult.EMPTY_1_0_T),
80	Empty_Estimation(052, "A{ 1.0, 0, T} ; B{<1.0,>0, F}",	1✔
81	IntersectResult.EMPTY_1_0_T, AnotbResult.EMPTY_1_0_T),
82	Empty_Degen(050, "A{ 1.0, 0, T} ; B{<1.0, 0, F}",	1✔
83	IntersectResult.EMPTY_1_0_T, AnotbResult.EMPTY_1_0_T),
84
85	Exact_Empty(065, "A{ 1.0,>0, F} ; B{ 1.0, 0, T}",	1✔
86	IntersectResult.EMPTY_1_0_T, AnotbResult.SKETCH_A),
87	Exact_Exact(066, "A{ 1.0,>0, F} ; B{ 1.0,>0, F}",	1✔
88	IntersectResult.FULL_INTER, AnotbResult.FULL_ANOTB),
89	Exact_Estimation(062, "A{ 1.0,>0, F} ; B{<1.0,>0, F}",	1✔
90	IntersectResult.FULL_INTER, AnotbResult.FULL_ANOTB),
91	Exact_Degen(060, "A{ 1.0,>0, F} ; B{<1.0, 0, F}",	1✔
92	IntersectResult.DEGEN_MIN_0_F, AnotbResult.SKA_TRIM),
93
94	Estimation_Empty(025, "A{<1.0,>0, F} ; B{ 1.0, 0, T}",	1✔
95	IntersectResult.EMPTY_1_0_T, AnotbResult.SKETCH_A),
96	Estimation_Exact(026, "A{<1.0,>0, F} ; B{ 1.0,>0, F}",	1✔
97	IntersectResult.FULL_INTER, AnotbResult.FULL_ANOTB),
98	Estimation_Estimation(022, "A{<1.0,>0, F} ; B{<1.0,>0, F}",	1✔
99	IntersectResult.FULL_INTER, AnotbResult.FULL_ANOTB),
100	Estimation_Degen(020, "A{<1.0,>0, F} ; B{<1.0, 0, F}",	1✔
101	IntersectResult.DEGEN_MIN_0_F, AnotbResult.SKA_TRIM),
102
103	Degen_Empty(005, "A{<1.0, 0, F} ; B{ 1.0, 0, T}",	1✔
104	IntersectResult.EMPTY_1_0_T, AnotbResult.DEGEN_THA_0_F),
105	Degen_Exact(006, "A{<1.0, 0, F} ; B{ 1.0,>0, F}",	1✔
106	IntersectResult.DEGEN_MIN_0_F, AnotbResult.DEGEN_THA_0_F),
107	Degen_Estimation(002, "A{<1.0, 0, F} ; B{<1.0,>0, F}",	1✔
108	IntersectResult.DEGEN_MIN_0_F, AnotbResult.DEGEN_MIN_0_F),
109	Degen_Degen(000, "A{<1.0, 0, F} ; B{<1.0, 0, F}",	1✔
110	IntersectResult.DEGEN_MIN_0_F, AnotbResult.DEGEN_MIN_0_F);
111
112	private static final Map<Integer, CornerCase> idToCornerCaseMap = new HashMap<>();	1✔
113	private int id;
114	private String inputStr;
115	private IntersectResult interResult;
116	private AnotbResult anotbResult;
117
118	static {
119	for (final CornerCase cc : values()) {	1✔
120	idToCornerCaseMap.put(cc.getId(), cc);	1✔
121	}
122	}	1✔
123
124	private CornerCase(final int id, final String desc,
125	final IntersectResult interResult, final AnotbResult anotbResult) {	1✔
126	this.id = id;	1✔
127	this.inputStr = desc;	1✔
128	this.interResult = interResult;	1✔
129	this.anotbResult = anotbResult;	1✔
130	}	1✔
131
132	public int getId() {
133	return id;	1✔
134	}
135
136	public String getDesc() {
137	return inputStr;	×
138	}
139
140	public IntersectResult getInterResult() {
141	return interResult;	×
142	}
143
144	public AnotbResult getAnotbResult() {
145	return anotbResult;	1✔
146	}
147
148	//See checkById test in /tuple/MiscTest.
149	public static CornerCase idToCornerCase(final int id) {
150	final CornerCase cc = idToCornerCaseMap.get(id);	1✔
151	if (cc == null) {	1✔
152	throw new SketchesArgumentException("Possible Corruption: Illegal CornerCase ID: " + Integer.toOctalString(id));	×
153	}
154	return cc;	1✔
155	}
156	} //end of enum CornerCase
157
158	public static int createCornerCaseId(
159	final long thetaLongA, final int countA, final boolean emptyA,
160	final long thetaLongB, final int countB, final boolean emptyB) {
161	return (sketchStateId(emptyA, countA, thetaLongA) << 3) \| sketchStateId(emptyB, countB, thetaLongB);	1✔
162	}
163
164	public static int sketchStateId(final boolean isEmpty, final int numRetained, final long theta) {
165	// assume theta = MAX if empty
166	return (((theta == MAX) \|\| isEmpty) ? 4 : 0) \| ((numRetained > 0) ? 2 : 0) \| (isEmpty ? 1 : 0);	1✔
167	}
168	}

apache / datasketches-java / #118

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