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* Refactor out usage of DefaultFormatter. It is an internal-only unstable API that is not recommended for users, and as such is unsuitable to include in examples.
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| @@ -0,0 +1,97 @@ | ||
| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one or more | ||
| * contributor license agreements. See the NOTICE file distributed with | ||
| * this work for additional information regarding copyright ownership. | ||
| * The ASF licenses this file to You 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.apache.accumulo.examples.util; | ||
|
|
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| import java.util.Map; | ||
|
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| import org.apache.accumulo.core.data.Key; | ||
| import org.apache.accumulo.core.data.Value; | ||
| import org.apache.accumulo.core.security.ColumnVisibility; | ||
| import org.apache.hadoop.io.Text; | ||
|
|
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| public final class FormatUtil { | ||
|
|
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| /** | ||
| * Format and return the specified table entry as a human-readable String suitable for logging. | ||
| * <br/> | ||
| * If {@code includeTimestamp} is true, the entry will be formatted as: <br/> | ||
| * {@literal <row> <columnFamily>:<columnQualifier> <columnVisibility> <timestamp>\t<value>} <br/> | ||
| * If false, the entry will be formatted as: <br/> | ||
| * {@literal <row> <columnFamily>:<columnQualifier> <columnVisibility>\t<value>} <br/> | ||
| * Examples: <br/> | ||
| * {@literal a ~chunk:\x00\x00\x00d\x00\x00\x00\x00 [A&B] 9223372036854775807 asdfjkl;} | ||
| * {@literal a ~chunk:\x00\x00\x00d\x00\x00\x00\x00 [A&B] asdfjkl;} | ||
| * | ||
| * @param entry | ||
| * the table entry to format | ||
| * @param includeTimestamp | ||
| * if true, include the timestamp in the returned result | ||
| * @return the specified entry as a formatted String, or null if the entry is null | ||
| */ | ||
| public static String formatTableEntry(final Map.Entry<Key,Value> entry, | ||
| final boolean includeTimestamp) { | ||
| if (entry == null) { | ||
| return null; | ||
| } | ||
|
|
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| Key key = entry.getKey(); | ||
| StringBuilder sb = new StringBuilder(); | ||
| Text buffer = new Text(); | ||
|
|
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| // Append row. | ||
| appendBytes(sb, key.getRow(buffer).getBytes()).append(" "); | ||
|
|
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| // Append column family. | ||
| appendBytes(sb, key.getColumnFamily().getBytes()).append(":"); | ||
|
|
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| // Append column qualifier. | ||
| appendBytes(sb, key.getColumnQualifier().getBytes()).append(" "); | ||
|
|
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| // Append visibility and timestamp. | ||
| sb.append(new ColumnVisibility(key.getColumnVisibility(buffer))); | ||
|
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| if (includeTimestamp) { | ||
| sb.append(" ").append(entry.getKey().getTimestamp()); | ||
| } | ||
|
|
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| // Append value. | ||
| Value value = entry.getValue(); | ||
| if (value != null && value.getSize() > 0) { | ||
| sb.append("\t"); | ||
| appendBytes(sb, value.get()); | ||
| } | ||
| return sb.toString(); | ||
| } | ||
|
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| private static StringBuilder appendBytes(final StringBuilder sb, final byte[] ba) { | ||
| for (byte b : ba) { | ||
| int c = 0xff & b; | ||
| if (c == '\\') { | ||
| sb.append("\\\\"); | ||
| } else if (c >= 32 && c <= 126) { | ||
| sb.append((char) c); | ||
| } else { | ||
| sb.append("\\x").append(String.format("%02X", c)); | ||
| } | ||
| } | ||
| return sb; | ||
| } | ||
|
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| private FormatUtil() { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
| } |