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PARQUET-2359: Add simple plain Parquet configuration implementation
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192 changes: 192 additions & 0 deletions
192
parquet-common/src/main/java/org/apache/parquet/conf/PlainParquetConfiguration.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,192 @@ | ||
| /* | ||
| * 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. | ||
| */ | ||
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| package org.apache.parquet.conf; | ||
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| import java.util.HashMap; | ||
| import java.util.Iterator; | ||
| import java.util.Map; | ||
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| /** | ||
| * Configuration for Parquet without Hadoop dependency. | ||
| */ | ||
| public class PlainParquetConfiguration implements ParquetConfiguration { | ||
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| private final Map<String, String> map; | ||
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| public PlainParquetConfiguration() { | ||
| map = new HashMap<>(); | ||
| } | ||
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| public PlainParquetConfiguration(Map<String, String> properties) { | ||
| map = new HashMap<>(properties); | ||
| } | ||
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| @Override | ||
| public void set(String s, String s1) { | ||
| map.put(s, s1); | ||
| } | ||
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| @Override | ||
| public void setLong(String name, long value) { | ||
| set(name, String.valueOf(value)); | ||
| } | ||
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| @Override | ||
| public void setInt(String name, int value) { | ||
| set(name, String.valueOf(value)); | ||
| } | ||
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| @Override | ||
| public void setBoolean(String name, boolean value) { | ||
| set(name, String.valueOf(value)); | ||
| } | ||
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| @Override | ||
| public void setStrings(String name, String... value) { | ||
| if (value.length > 0) { | ||
| StringBuilder sb = new StringBuilder(value[0]); | ||
| for (int i = 1; i < value.length; ++i) { | ||
| sb.append(','); | ||
| sb.append(value[i]); | ||
| } | ||
| set(name, sb.toString()); | ||
| } else { | ||
| set(name, ""); | ||
| } | ||
| } | ||
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| @Override | ||
| public void setClass(String name, Class<?> value, Class<?> xface) { | ||
| if (xface.isAssignableFrom(value)) { | ||
| set(name, value.getName()); | ||
| } else { | ||
| throw new RuntimeException(xface.getCanonicalName() + " is not assignable from " + value.getCanonicalName()); | ||
| } | ||
| } | ||
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| @Override | ||
| public String get(String name) { | ||
| return map.get(name); | ||
| } | ||
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| @Override | ||
| public String get(String name, String defaultValue) { | ||
| String value = get(name); | ||
| if (value != null) { | ||
| return value; | ||
| } else { | ||
| return defaultValue; | ||
| } | ||
| } | ||
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| @Override | ||
| public long getLong(String name, long defaultValue) { | ||
| String value = get(name); | ||
| if (value != null) { | ||
| return Long.parseLong(value); | ||
| } else { | ||
| return defaultValue; | ||
| } | ||
| } | ||
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| @Override | ||
| public int getInt(String name, int defaultValue) { | ||
| String value = get(name); | ||
| if (value != null) { | ||
| return Integer.parseInt(value); | ||
| } else { | ||
| return defaultValue; | ||
| } | ||
| } | ||
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| @Override | ||
| public boolean getBoolean(String name, boolean defaultValue) { | ||
| String value = get(name); | ||
| if (value != null) { | ||
| return Boolean.parseBoolean(value); | ||
| } else { | ||
| return defaultValue; | ||
| } | ||
| } | ||
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| @Override | ||
| public String getTrimmed(String name) { | ||
| String value = get(name); | ||
| if (value != null) { | ||
| return value.trim(); | ||
| } else { | ||
| return null; | ||
| } | ||
| } | ||
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| @Override | ||
| public String getTrimmed(String name, String defaultValue) { | ||
| String value = get(name); | ||
| if (value != null) { | ||
| return value.trim(); | ||
| } else { | ||
| return defaultValue; | ||
| } | ||
| } | ||
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| @Override | ||
| public String[] getStrings(String name, String[] defaultValue) { | ||
| String value = get(name); | ||
| if (value != null) { | ||
| return value.split(","); | ||
| } else { | ||
| return defaultValue; | ||
| } | ||
| } | ||
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| @Override | ||
| public Class<?> getClass(String name, Class<?> defaultValue) { | ||
| String value = get(name); | ||
| if (value != null) { | ||
| try { | ||
| return Class.forName(value); | ||
| } catch (ClassNotFoundException e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| } else { | ||
| return defaultValue; | ||
| } | ||
| } | ||
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| @Override | ||
| @SuppressWarnings("unchecked") | ||
| public <U> Class<? extends U> getClass(String name, Class<? extends U> defaultValue, Class<U> xface) { | ||
| Class<?> value = getClass(name, defaultValue); | ||
| if (value != null && value.isAssignableFrom(xface)) { | ||
| return (Class<? extends U>) value; | ||
| } | ||
| return defaultValue; | ||
| } | ||
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| @Override | ||
| public Class<?> getClassByName(String name) throws ClassNotFoundException { | ||
| return Class.forName(name); | ||
| } | ||
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| @Override | ||
| public Iterator<Map.Entry<String, String>> iterator() { | ||
| return map.entrySet().iterator(); | ||
| } | ||
| } |