53 lines
1.4 KiB
Java
53 lines
1.4 KiB
Java
/**
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*
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* Copyright 2020 Florian Schmaus
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.jivesoftware.smack.internal;
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import java.io.IOException;
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import org.jivesoftware.smack.util.ExtendedAppendable;
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public abstract class AbstractStats {
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public final void appendStatsTo(Appendable appendable) throws IOException {
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appendStatsTo(new ExtendedAppendable(appendable));
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}
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public abstract void appendStatsTo(ExtendedAppendable appendable) throws IOException;
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private transient String toStringCache;
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@Override
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public final String toString() {
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if (toStringCache != null) {
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return toStringCache;
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}
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StringBuilder sb = new StringBuilder();
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try {
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appendStatsTo(sb);
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} catch (IOException e) {
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// Should never happen.
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throw new AssertionError(e);
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}
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toStringCache = sb.toString();
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return toStringCache;
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}
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}
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