io.micronaut.cache.interceptor.ParametersKey Maven / Gradle / Ivy
/*
* Copyright 2017-2020 original authors
*
* 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 io.micronaut.cache.interceptor;
import io.micronaut.core.reflect.ClassUtils;
import io.micronaut.core.util.ArrayUtils;
import java.io.Serializable;
import java.util.Arrays;
/**
* A key that uses the parameters of a method.
*
* @author Graeme Rocher
* @since 1.0
*/
public class ParametersKey implements Serializable {
public static final ParametersKey ZERO_ARG_KEY = new ParametersKey();
private final Object[] params;
private final int hashCode;
/**
* @param params Parameters of the method
*/
public ParametersKey(Object... params) {
if (ArrayUtils.isEmpty(params)) {
this.params = ArrayUtils.EMPTY_OBJECT_ARRAY;
this.hashCode = ClassUtils.EMPTY_OBJECT_ARRAY_HASH_CODE;
} else {
this.params = new Object[params.length];
System.arraycopy(params, 0, this.params, 0, params.length);
this.hashCode = Arrays.deepHashCode(this.params);
}
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
return o instanceof ParametersKey && Arrays.deepEquals(params, ((ParametersKey) o).params);
}
@Override
public int hashCode() {
return hashCode;
}
@Override
public String toString() {
return ParametersKey.class.getSimpleName() + ": " + ArrayUtils.toString(params);
}
}