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org.opennms.newts.api.search.Term Maven / Gradle / Ivy
/*
* Copyright 2014, The OpenNMS Group
*
* 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.opennms.newts.api.search;
import static com.google.common.base.Preconditions.checkNotNull;
public class Term {
private final String m_field;
private final String m_value;
/**
* If field is null, the implementation will use the default field.
*/
public Term(String field, String value) {
m_field = field;
m_value = checkNotNull(value, "value argument");
}
/**
* Use the default field.
*/
public Term(String value) {
this(null, value);
}
public String getField(String defaultField) {
return m_field == null ? defaultField : m_field;
}
public String getValue() {
return m_value;
}
@Override
public boolean equals(Object obj) {
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
final Term other = (Term) obj;
return com.google.common.base.Objects.equal(m_field, other.m_field)
&& com.google.common.base.Objects.equal(m_value, other.m_value);
}
@Override
public int hashCode() {
return com.google.common.base.Objects.hashCode(
m_field, m_value);
}
@Override
public String toString() {
return m_field == null ? escapeChars(m_value) : String.format("%s:%s",
escapeChars(m_field), escapeChars(m_value));
}
private static String escapeChars(String token) {
// Escape any backslashes before we add more
token = token.replace("\\", "\\\\");
// Escape colons
token = token.replace(":", "\\:");
return token;
}
}
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