/
SimpleArgWriter.java
57 lines (48 loc) · 1.62 KB
/
SimpleArgWriter.java
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/*
* Copyright 2021 Whelk Contributors (http://whelk.io)
*
* 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.whelk.spring.data.logging.writer;
import java.util.Collection;
import java.util.Objects;
import java.util.Optional;
/**
* @author Zack Teater
* @since 0.1.0
*/
public class SimpleArgWriter implements ArgWriter {
/**
* {inheritDoc}
*/
@Override
public <T> String argToString(T arg) {
if (arg == null) {
return Objects.toString(arg);
}
if (Optional.class.isInstance(arg)) {
var opt = Optional.class.cast(arg);
var val = opt.isPresent() ? opt.get() : null;
return Objects.toString(val);
}
if (arg.getClass().isArray()) {
Object[] arr = (Object[]) arg;
return String.format("%s[size=%d]", arg.getClass().getSimpleName(), arr.length);
}
if (Collection.class.isInstance(arg)) {
var c = Collection.class.cast(arg);
return String.format("%s[size=%d]", arg.getClass().getSimpleName(), c.size());
}
return Objects.toString(arg);
}
}