/*
* Copyright 2016 Red Hat, Inc. and/or its affiliates.
*
* Licensed 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.drools.workbench.services.verifier.core.cache.inspectors.condition;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;
import org.drools.workbench.services.verifier.api.client.relations.IsSubsuming;
import org.drools.workbench.services.verifier.api.client.relations.Operator;
import org.drools.workbench.services.verifier.api.client.configuration.AnalyzerConfiguration;
import org.drools.workbench.services.verifier.api.client.index.FieldCondition;
import org.drools.workbench.services.verifier.api.client.index.keys.Values;
public class StringConditionInspector
extends ComparableConditionInspector<String> {
private static final Set<Operator> LEGAL_OPERATORS = getLegalOperators();
public StringConditionInspector( final FieldCondition<String> fieldInspector,
final AnalyzerConfiguration configuration ) {
super( fieldInspector,
configuration );
}
private static HashSet<Operator> getLegalOperators() {
final HashSet<Operator> operators = new HashSet<>();
operators.add( Operator.MATCHES );
operators.add( Operator.NOT_MATCHES );
operators.add( Operator.EQUALS );
operators.add( Operator.NOT_EQUALS );
operators.add( Operator.CONTAINS );
operators.add( Operator.NOT_CONTAINS );
operators.add( Operator.IN );
operators.add( Operator.NOT_IN );
operators.add( Operator.SOUNDSLIKE );
return operators;
}
@Override
public boolean isRedundant( Object other ) {
if ( this.equals( other ) ) {
return true;
}
if ( other instanceof IsSubsuming ) {
boolean b = subsumes( other ) && ( (IsSubsuming) other ).subsumes( this );
return b;
} else {
return false;
}
}
@Override
public boolean conflicts( Object other ) {
if ( this.equals( other ) ) {
return false;
}
if ( other instanceof StringConditionInspector ) {
if ( !LEGAL_OPERATORS.contains( operator ) || !LEGAL_OPERATORS.contains( ( (StringConditionInspector) other ).operator ) ) {
return false;
}
if ( !hasValue() || !( (StringConditionInspector) other ).hasValue() ) {
return false;
}
if ( ( doesNotContainAll( ( (StringConditionInspector) other ).getValues() )
|| ( (StringConditionInspector) other ).doesNotContainAll( getValues() ) )
&&
( eitherOperatorIs( (StringConditionInspector) other,
Operator.LESS_THAN )
|| eitherOperatorIs( (StringConditionInspector) other,
Operator.LESS_OR_EQUAL )
|| eitherOperatorIs( (StringConditionInspector) other,
Operator.GREATER_THAN )
|| eitherOperatorIs( (StringConditionInspector) other,
Operator.GREATER_OR_EQUAL ) ) ) {
return false;
}
if ( operatorsAre( ( (StringConditionInspector) other ),
Operator.NOT_EQUALS ) ) {
return false;
}
}
boolean conflicts = !overlaps( other );
return conflicts;
}
private boolean eitherOperatorIs( StringConditionInspector other,
Operator operator ) {
return other.getOperator()
.equals( operator )
|| this.operator.equals( operator );
}
@Override
public boolean overlaps( Object other ) {
if ( other instanceof StringConditionInspector ) {
if ( !LEGAL_OPERATORS.contains( operator ) || !LEGAL_OPERATORS.contains( ( (StringConditionInspector) other ).operator ) ) {
return false;
}
final StringConditionInspector otherInspector = (StringConditionInspector) other;
if ( getValue().isEmpty() || ( (StringConditionInspector) other ).getValue()
.isEmpty() ) {
return false;
}
if ( operatorsAre( otherInspector,
Operator.LESS_THAN )
|| ( operatorsAre( otherInspector,
Operator.GREATER_THAN ) )
|| ( operatorsAre( otherInspector,
Operator.LESS_OR_EQUAL ) )
|| ( operatorsAre( otherInspector,
Operator.GREATER_OR_EQUAL ) )
|| operatorsAre( otherInspector,
Operator.LESS_THAN,
Operator.LESS_OR_EQUAL )
|| operatorsAre( otherInspector,
Operator.GREATER_THAN,
Operator.GREATER_OR_EQUAL ) ) {
return true;
}
if ( getValue().equals( otherInspector.getValue() )
&& ( operator.equals( otherInspector.getOperator() ) ) ) {
return true;
}
if ( ( (StringConditionInspector) other ).getOperator()
.equals( Operator.LESS_THAN )
|| operator.equals( Operator.LESS_THAN )
|| ( (StringConditionInspector) other ).getOperator()
.equals( Operator.GREATER_THAN )
|| operator.equals( Operator.GREATER_THAN ) ) {
return false;
}
if ( !otherInspector.hasValue() ) {
return false;
} else {
switch ( operator ) {
case MATCHES:
case SOUNDSLIKE:
case EQUALS:
case GREATER_OR_EQUAL:
case LESS_OR_EQUAL:
switch ( otherInspector.getOperator() ) {
case NOT_EQUALS:
return !otherInspector.containsAll( getValues() );
case EQUALS:
case MATCHES:
case SOUNDSLIKE:
return otherInspector.containsAll( getValues() );
case IN:
return otherInspector.valuesContains( getValue() );
case NOT_IN:
return !otherInspector.valuesContains( getValue() );
default:
return super.overlaps( other );
}
case NOT_IN:
switch ( otherInspector.getOperator() ) {
case EQUALS:
case MATCHES:
case SOUNDSLIKE:
return !valuesContains( otherInspector.getValue() );
case IN:
return doesNotContainAll( otherInspector.getValues() );
default:
return !otherInspector.containsAll( getValues() );
}
case NOT_EQUALS:
switch ( otherInspector.getOperator() ) {
case IN:
return doesNotContainAll( ( (StringConditionInspector) other ).getValues() );
case NOT_EQUALS:
return !otherInspector.containsAll( getValues() );
default:
return !otherInspector.valuesContains( getValue() );
}
case IN:
switch ( otherInspector.getOperator() ) {
case EQUALS:
case MATCHES:
case SOUNDSLIKE:
case GREATER_OR_EQUAL:
case LESS_OR_EQUAL:
return valuesContains( otherInspector.getValue() );
case NOT_EQUALS:
return otherInspector.doesNotContainAll( getValues() );
case NOT_IN:
return doesNotContainAll( otherInspector.getValues() );
case IN:
return containsAny( otherInspector.getValues() );
}
}
}
}
return super.overlaps( other );
}
private boolean operatorsAre( final StringConditionInspector otherInspector,
final Operator operator ) {
return this.operator.equals( operator ) && otherInspector.getOperator()
.equals( operator );
}
private boolean operatorsAre( final StringConditionInspector otherInspector,
final Operator a,
final Operator b ) {
return ( this.operator.equals( a ) && otherInspector.getOperator()
.equals( b ) )
|| ( this.operator.equals( b ) && otherInspector.getOperator()
.equals( a ) );
}
@Override
public boolean covers( Comparable<String> otherValue ) {
switch ( operator ) {
case STR_STARTS_WITH:
return getValue().startsWith( otherValue.toString() );
case STR_ENDS_WITH:
return getValue().endsWith( otherValue.toString() );
case MATCHES:
case SOUNDSLIKE:
return valueIsEqualTo( otherValue );
case CONTAINS:
return false;
case NOT_MATCHES:
return !valueIsEqualTo( otherValue );
case IN:
return valuesContains( otherValue.toString() );
case NOT_IN:
return !valuesContains( otherValue.toString() );
default:
return super.covers( otherValue );
}
}
protected boolean valueIsGreaterThanOrEqualTo( final Comparable<String> otherValue ) {
return valueIsEqualTo( otherValue );
}
protected boolean valueIsLessThanOrEqualTo( final Comparable<String> otherValue ) {
return valueIsEqualTo( otherValue );
}
protected boolean valueIsGreaterThan( final Comparable<String> otherValue ) {
return false;
}
protected boolean valueIsLessThan( final Comparable<String> otherValue ) {
return false;
}
protected boolean valueIsEqualTo( final Comparable<String> otherValue ) {
return valuesContains( otherValue.toString() );
}
private boolean valuesContains( final Object value ) {
return getValues().contains( value );
}
private boolean containsAll( final Values<Comparable> otherValues ) {
if ( getValues().isEmpty() || otherValues.isEmpty() ) {
return false;
} else {
for ( Object otherValue : otherValues ) {
if ( !getValues().contains( otherValue ) ) {
return false;
}
}
return true;
}
}
private boolean doesNotContainAll( final Values<Comparable> otherValues ) {
for ( final Object otherValue : otherValues ) {
if ( !getValues().contains( otherValue ) ) {
return true;
}
}
return false;
}
private boolean containsAny( final Values<Comparable> otherValues ) {
for ( final Object thisValue : getValues() ) {
for ( final Object otherValue : otherValues ) {
if ( thisValue.equals( otherValue ) ) {
return true;
}
}
}
return false;
}
@Override
public boolean subsumes( Object other ) {
if ( other instanceof StringConditionInspector ) {
if ( ( (StringConditionInspector) other ).getOperator()
.equals( operator ) ) {
return getValues().containsAll( ( (StringConditionInspector) other ).getValues() );
}
switch ( operator ) {
case EQUALS:
case MATCHES:
case SOUNDSLIKE:
case LESS_OR_EQUAL:
case GREATER_OR_EQUAL:
if ( operatorsAre( (StringConditionInspector) other,
Operator.LESS_OR_EQUAL )
|| operatorsAre( (StringConditionInspector) other,
Operator.GREATER_OR_EQUAL )
|| operatorsAre( (StringConditionInspector) other,
Operator.LESS_OR_EQUAL,
Operator.LESS_THAN )
|| operatorsAre( (StringConditionInspector) other,
Operator.GREATER_OR_EQUAL,
Operator.GREATER_THAN ) ) {
return getValue().equals( ( (StringConditionInspector) other ).getValue() );
} else {
switch ( ( (StringConditionInspector) other ).getOperator() ) {
case IN:
return getValues().containsAll( ( (StringConditionInspector) other ).getValues() );
case EQUALS:
case MATCHES:
case SOUNDSLIKE:
return getValue().equals( ( (StringConditionInspector) other ).getValue() );
}
}
break;
case IN:
switch ( ( (StringConditionInspector) other ).getOperator() ) {
case EQUALS:
case MATCHES:
case SOUNDSLIKE:
return getValues().contains( ( (StringConditionInspector) other ).getValue() );
}
break;
case NOT_IN:
switch ( ( (StringConditionInspector) other ).getOperator() ) {
case IN:
case EQUALS:
case MATCHES:
case SOUNDSLIKE:
return !containsAll( ( (StringConditionInspector) other ).getValues() );
case NOT_EQUALS:
return getValues().contains( ( (StringConditionInspector) other ).getValue() );
}
break;
case NOT_EQUALS:
switch ( ( (StringConditionInspector) other ).getOperator() ) {
case NOT_IN:
return getValues().containsAll( ( (StringConditionInspector) other ).getValues() );
case IN:
return !( (StringConditionInspector) other ).getValues()
.contains( getValue() );
case EQUALS:
case MATCHES:
case SOUNDSLIKE:
return !getValue().equals( ( (StringConditionInspector) other ).getValue() );
}
break;
}
}
return false;
}
@Override
public boolean hasValue() {
return getValues() != null && !getValues().isEmpty() && hasAValueSetInList();
}
@Override
public String toHumanReadableString() {
final StringBuilder stringBuilder = new StringBuilder();
stringBuilder.append( field.getName() );
stringBuilder.append( " " );
stringBuilder.append( operator );
stringBuilder.append( " " );
final Iterator<Comparable> iterator = getValues().iterator();
while ( iterator.hasNext() ) {
stringBuilder.append( iterator.next() );
if ( iterator.hasNext() ) {
stringBuilder.append( ", " );
}
}
return stringBuilder.toString();
}
private boolean hasAValueSetInList() {
for ( final Object value : getValues() ) {
if ( value != null && !( (String) value ).trim()
.isEmpty() ) {
return true;
}
}
return false;
}
}