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new a7251c3 Replace use of equals() with Object.equals() (#1541)
a7251c3 is described below
commit a7251c3e970e815dfc8e49685a207ff7f5696ab8
Author: Mark Owens <[email protected]>
AuthorDate: Wed Mar 4 11:34:05 2020 -0500
Replace use of equals() with Object.equals() (#1541)
* Replace use of equals() with Object.equals()
Utilize newer Java language features to simplify code by using
Object.equals() rather than equals(). Updated the equals() and hashcode()
methods in appropriate classes.
---
.../accumulo/core/client/admin/DiskUsage.java | 9 ++----
.../core/client/mapreduce/InputTableConfig.java | 37 +++++-----------------
.../org/apache/accumulo/core/data/Condition.java | 36 +++++----------------
3 files changed, 19 insertions(+), 63 deletions(-)
diff --git
a/core/src/main/java/org/apache/accumulo/core/client/admin/DiskUsage.java
b/core/src/main/java/org/apache/accumulo/core/client/admin/DiskUsage.java
index 5e4b5f0..ae5811f 100644
--- a/core/src/main/java/org/apache/accumulo/core/client/admin/DiskUsage.java
+++ b/core/src/main/java/org/apache/accumulo/core/client/admin/DiskUsage.java
@@ -18,6 +18,7 @@
*/
package org.apache.accumulo.core.client.admin;
+import java.util.Objects;
import java.util.SortedSet;
public class DiskUsage {
@@ -47,16 +48,12 @@ public class DiskUsage {
DiskUsage diskUsage = (DiskUsage) o;
- if (tables != null ? !tables.equals(diskUsage.tables) : diskUsage.tables
!= null)
- return false;
- return usage != null ? usage.equals(diskUsage.usage) : diskUsage.usage ==
null;
+ return Objects.equals(tables, diskUsage.tables) && Objects.equals(usage,
diskUsage.usage);
}
@Override
public int hashCode() {
- int result = tables != null ? tables.hashCode() : 0;
- result = 31 * result + (usage != null ? usage.hashCode() : 0);
- return result;
+ return Objects.hash(tables, usage);
}
@Override
diff --git
a/core/src/main/java/org/apache/accumulo/core/client/mapreduce/InputTableConfig.java
b/core/src/main/java/org/apache/accumulo/core/client/mapreduce/InputTableConfig.java
index 8801b39..45661ef 100644
---
a/core/src/main/java/org/apache/accumulo/core/client/mapreduce/InputTableConfig.java
+++
b/core/src/main/java/org/apache/accumulo/core/client/mapreduce/InputTableConfig.java
@@ -25,6 +25,7 @@ import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
+import java.util.Objects;
import org.apache.accumulo.core.client.ClientSideIteratorScanner;
import org.apache.accumulo.core.client.IsolatedScanner;
@@ -377,39 +378,17 @@ public class InputTableConfig implements Writable {
return true;
if (o == null || getClass() != o.getClass())
return false;
-
InputTableConfig that = (InputTableConfig) o;
-
- if (autoAdjustRanges != that.autoAdjustRanges)
- return false;
- if (offlineScan != that.offlineScan)
- return false;
- if (useIsolatedScanners != that.useIsolatedScanners)
- return false;
- if (useLocalIterators != that.useLocalIterators)
- return false;
- if (columns != null ? !columns.equals(that.columns) : that.columns != null)
- return false;
- if (iterators != null ? !iterators.equals(that.iterators) : that.iterators
!= null)
- return false;
- if (ranges != null ? !ranges.equals(that.ranges) : that.ranges != null)
- return false;
- if (samplerConfig != null ? !samplerConfig.equals(that.samplerConfig)
- : that.samplerConfig != null)
- return false;
- return true;
+ return autoAdjustRanges == that.autoAdjustRanges && useLocalIterators ==
that.useLocalIterators
+ && useIsolatedScanners == that.useIsolatedScanners && offlineScan ==
that.offlineScan
+ && Objects.equals(iterators, that.iterators) && Objects.equals(ranges,
that.ranges)
+ && Objects.equals(columns, that.columns)
+ && Objects.equals(samplerConfig, that.samplerConfig);
}
@Override
public int hashCode() {
- int result = 31 * (iterators != null ? iterators.hashCode() : 0);
- result = 31 * result + (ranges != null ? ranges.hashCode() : 0);
- result = 31 * result + (columns != null ? columns.hashCode() : 0);
- result = 31 * result + (autoAdjustRanges ? 1 : 0);
- result = 31 * result + (useLocalIterators ? 1 : 0);
- result = 31 * result + (useIsolatedScanners ? 1 : 0);
- result = 31 * result + (offlineScan ? 1 : 0);
- result = 31 * result + (samplerConfig == null ? 0 :
samplerConfig.hashCode());
- return result;
+ return Objects.hash(iterators, ranges, columns, autoAdjustRanges,
useLocalIterators,
+ useIsolatedScanners, offlineScan, samplerConfig);
}
}
diff --git a/core/src/main/java/org/apache/accumulo/core/data/Condition.java
b/core/src/main/java/org/apache/accumulo/core/data/Condition.java
index 74f8e49..30d8140 100644
--- a/core/src/main/java/org/apache/accumulo/core/data/Condition.java
+++ b/core/src/main/java/org/apache/accumulo/core/data/Condition.java
@@ -23,6 +23,7 @@ import static java.nio.charset.StandardCharsets.UTF_8;
import java.util.Arrays;
import java.util.HashSet;
+import java.util.Objects;
import org.apache.accumulo.core.client.IteratorSetting;
import org.apache.accumulo.core.security.ColumnVisibility;
@@ -308,41 +309,20 @@ public class Condition {
@Override
public boolean equals(Object o) {
- if (o == this) {
+ if (this == o)
return true;
- }
- if (o == null || !(o instanceof Condition)) {
- return false;
- }
- Condition c = (Condition) o;
- if (!(c.cf.equals(cf))) {
- return false;
- }
- if (!(c.cq.equals(cq))) {
- return false;
- }
- if (!(c.cv.equals(cv))) {
+ if (o == null || !(o instanceof Condition))
return false;
- }
- if (!(c.val == null ? val == null : c.val.equals(val))) {
- return false;
- }
- if (!(c.ts == null ? ts == null : c.ts.equals(ts))) {
- return false;
- }
- return Arrays.equals(c.iterators, iterators);
+ Condition condition = (Condition) o;
+ return Objects.equals(cf, condition.cf) && Objects.equals(cq, condition.cq)
+ && Objects.equals(cv, condition.cv) && Objects.equals(val,
condition.val)
+ && Objects.equals(ts, condition.ts) && Arrays.equals(iterators,
condition.iterators);
}
@Override
public int hashCode() {
- int result = 17;
- result = 31 * result + cf.hashCode();
- result = 31 * result + cq.hashCode();
- result = 31 * result + cv.hashCode();
- result = 31 * result + (val == null ? 0 : val.hashCode());
- result = 31 * result + (ts == null ? 0 : ts.hashCode());
+ int result = Objects.hash(cf, cq, cv, val, ts);
result = 31 * result + Arrays.hashCode(iterators);
return result;
}
-
}
