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src/main/java/com/kumuluz/ee/config/microprofile/ConfigImpl.java
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/* | ||
* Copyright (c) 2014-2017 Kumuluz and/or its affiliates | ||
* and other contributors as indicated by the @author tags and | ||
* the contributor list. | ||
* | ||
* Licensed under the MIT License (the "License"); | ||
* you may not use this file except in compliance with the License. | ||
* You may obtain a copy of the License at | ||
* | ||
* https://opensource.org/licenses/MIT | ||
* | ||
* The software is provided "AS IS", WITHOUT WARRANTY OF ANY KIND, express or | ||
* implied, including but not limited to the warranties of merchantability, | ||
* fitness for a particular purpose and noninfringement. in no event shall the | ||
* authors or copyright holders be liable for any claim, damages or other | ||
* liability, whether in an action of contract, tort or otherwise, arising from, | ||
* out of or in connection with the software or the use or other dealings in the | ||
* software. See the License for the specific language governing permissions and | ||
* limitations under the License. | ||
*/ | ||
package com.kumuluz.ee.config.microprofile; | ||
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import java.io.Serializable; | ||
import java.lang.reflect.Array; | ||
import java.lang.reflect.Type; | ||
import java.util.ArrayList; | ||
import java.util.List; | ||
import java.util.Map; | ||
import java.util.NoSuchElementException; | ||
import java.util.Optional; | ||
import java.util.logging.Logger; | ||
import java.util.regex.Pattern; | ||
import java.util.stream.Collectors; | ||
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import org.eclipse.microprofile.config.Config; | ||
import org.eclipse.microprofile.config.spi.ConfigSource; | ||
import org.eclipse.microprofile.config.spi.Converter; | ||
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import com.kumuluz.ee.config.microprofile.converters.ImplicitConverter; | ||
import com.kumuluz.ee.config.microprofile.utils.AlternativeTypesUtil; | ||
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/** | ||
* Microprofile Config implementation that exposes KumuluzEE configuration framework. | ||
* | ||
* @author Urban Malc | ||
* @author Jan Meznarič | ||
* @author Yog Sothoth | ||
* @since 1.1 | ||
*/ | ||
public class ConfigImpl implements Config, Serializable { | ||
private static final Logger logger = Logger.getLogger(ConfigImpl.class.getCanonicalName()); | ||
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private static final String ARRAY_SEPARATOR_REGEX = "(?<!\\\\)" + Pattern.quote(","); | ||
private Map<Type, Converter> converters; | ||
private List<ConfigSource> configSources; | ||
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public ConfigImpl(List<ConfigSource> configSources, Map<Type, Converter> converters) { | ||
this.configSources = configSources; | ||
this.converters = converters; | ||
} | ||
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@Override | ||
public <T> Optional<T> getOptionalValue(String propertyName, Class<T> asType) { | ||
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String value = null; | ||
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for (ConfigSource cs : this.configSources) { | ||
value = cs.getValue(propertyName); | ||
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if (value != null) { | ||
break; | ||
} | ||
} | ||
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T convertedValue; | ||
try { | ||
convertedValue = convert(value, asType); | ||
} catch (Exception e) { | ||
throw new IllegalArgumentException("Could not convert value " + value + " to type " + asType, e); | ||
} | ||
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return Optional.ofNullable(convertedValue); | ||
} | ||
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@Override | ||
public <T> T getValue(String propertyName, Class<T> propertyType) { | ||
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Optional<T> valueOpt = getOptionalValue(propertyName, propertyType); | ||
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if (!valueOpt.isPresent()) { | ||
throw new NoSuchElementException("No configured value found for config key " + propertyName); | ||
} | ||
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return valueOpt.get(); | ||
} | ||
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@SuppressWarnings("unchecked") | ||
public <T> T convert(String value, Class<T> asType) { | ||
|
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if (value == null) { | ||
return null; | ||
} | ||
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if (asType.isArray()) { | ||
Class<?> arrayType = asType.getComponentType(); | ||
List a = convertList(value, arrayType); | ||
Object arr = Array.newInstance(arrayType, a.size()); | ||
for (int i = 0; i < a.size(); i++) { | ||
Array.set(arr, i, a.get(i)); | ||
} | ||
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return (T) arr; | ||
} | ||
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Converter<T> converter = getConverter(asType); | ||
return converter.convert(value); | ||
} | ||
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public <T> List<T> convertList(String value, Class<T> listType) { | ||
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String[] tokens = value.split(ARRAY_SEPARATOR_REGEX); | ||
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Converter<T> converter = getConverter(listType); | ||
List<T> convertedList = new ArrayList<>(tokens.length); | ||
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for (String token : tokens) { | ||
token = token.replace("\\,", ","); | ||
convertedList.add(converter.convert(token)); | ||
} | ||
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return convertedList; | ||
} | ||
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@SuppressWarnings("unchecked") | ||
private <T> Converter<T> getConverter(Class asType) { | ||
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asType = (Class) AlternativeTypesUtil.getTypeFromPrimitive(asType).orElse(asType); | ||
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Converter converter = converters.get(asType); | ||
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if (converter == null) { | ||
// no registered converter, try to generate implicit converter | ||
converter = ImplicitConverter.getImplicitConverter(asType); | ||
} | ||
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if (converter == null) { | ||
throw new IllegalArgumentException("No Converter registered for class " + asType); | ||
} | ||
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return converter; | ||
} | ||
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@Override | ||
public Iterable<String> getPropertyNames() { | ||
return this.configSources.stream().flatMap(e -> e.getPropertyNames().stream()).collect(Collectors.toSet()); | ||
} | ||
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@Override | ||
public Iterable<ConfigSource> getConfigSources() { | ||
return this.configSources; | ||
} | ||
} | ||
/* | ||
* Copyright (c) 2014-2017 Kumuluz and/or its affiliates | ||
* and other contributors as indicated by the @author tags and | ||
* the contributor list. | ||
* | ||
* Licensed under the MIT License (the "License"); | ||
* you may not use this file except in compliance with the License. | ||
* You may obtain a copy of the License at | ||
* | ||
* https://opensource.org/licenses/MIT | ||
* | ||
* The software is provided "AS IS", WITHOUT WARRANTY OF ANY KIND, express or | ||
* implied, including but not limited to the warranties of merchantability, | ||
* fitness for a particular purpose and noninfringement. in no event shall the | ||
* authors or copyright holders be liable for any claim, damages or other | ||
* liability, whether in an action of contract, tort or otherwise, arising from, | ||
* out of or in connection with the software or the use or other dealings in the | ||
* software. See the License for the specific language governing permissions and | ||
* limitations under the License. | ||
*/ | ||
package com.kumuluz.ee.config.microprofile; | ||
|
||
import java.io.Serializable; | ||
import java.lang.reflect.Array; | ||
import java.lang.reflect.Type; | ||
import java.util.ArrayList; | ||
import java.util.List; | ||
import java.util.Map; | ||
import java.util.NoSuchElementException; | ||
import java.util.Optional; | ||
import java.util.logging.Logger; | ||
import java.util.regex.Pattern; | ||
import java.util.stream.Collectors; | ||
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import org.eclipse.microprofile.config.Config; | ||
import org.eclipse.microprofile.config.spi.ConfigSource; | ||
import org.eclipse.microprofile.config.spi.Converter; | ||
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import com.kumuluz.ee.config.microprofile.converters.ImplicitConverter; | ||
import com.kumuluz.ee.config.microprofile.utils.AlternativeTypesUtil; | ||
|
||
/** | ||
* Microprofile Config implementation that exposes KumuluzEE configuration framework. | ||
* | ||
* @author Urban Malc | ||
* @author Jan Meznarič | ||
* @author Yog Sothoth | ||
* @since 1.1 | ||
*/ | ||
public class ConfigImpl implements Config, Serializable { | ||
private static final Logger logger = Logger.getLogger(ConfigImpl.class.getCanonicalName()); | ||
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||
private static final String ARRAY_SEPARATOR_REGEX = "(?<!\\\\)" + Pattern.quote(","); | ||
private Map<Type, Converter> converters; | ||
private List<ConfigSource> configSources; | ||
|
||
public ConfigImpl(List<ConfigSource> configSources, Map<Type, Converter> converters) { | ||
this.configSources = configSources; | ||
this.converters = converters; | ||
} | ||
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||
@Override | ||
public <T> Optional<T> getOptionalValue(String propertyName, Class<T> asType) { | ||
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||
String value = null; | ||
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||
for (ConfigSource cs : this.configSources) { | ||
value = cs.getValue(propertyName); | ||
|
||
if (value != null) { | ||
break; | ||
} | ||
} | ||
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||
T convertedValue; | ||
try { | ||
convertedValue = convert(value, asType); | ||
} catch (Exception e) { | ||
throw new IllegalArgumentException("Could not convert value " + value + " to type " + asType, e); | ||
} | ||
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return Optional.ofNullable(convertedValue); | ||
} | ||
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@Override | ||
public <T> T getValue(String propertyName, Class<T> propertyType) { | ||
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Optional<T> valueOpt = getOptionalValue(propertyName, propertyType); | ||
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if (!valueOpt.isPresent()) { | ||
throw new NoSuchElementException("No configured value found for config key " + propertyName); | ||
} | ||
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return valueOpt.get(); | ||
} | ||
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||
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@SuppressWarnings("unchecked") | ||
public <T> T convert(String value, Class<T> asType) { | ||
|
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if (value == null) { | ||
return null; | ||
} | ||
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if (asType.isArray()) { | ||
Class<?> arrayType = asType.getComponentType(); | ||
List a = convertList(value, arrayType); | ||
Object arr = Array.newInstance(arrayType, a.size()); | ||
for (int i = 0; i < a.size(); i++) { | ||
Array.set(arr, i, a.get(i)); | ||
} | ||
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return (T) arr; | ||
} | ||
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Converter<T> converter = getConverter(asType); | ||
return converter.convert(value); | ||
} | ||
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public <T> List<T> convertList(String value, Class<T> listType) { | ||
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String[] tokens = value.split(ARRAY_SEPARATOR_REGEX); | ||
|
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Converter<T> converter = getConverter(listType); | ||
List<T> convertedList = new ArrayList<>(tokens.length); | ||
|
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for (String token : tokens) { | ||
token = token.replace("\\,", ","); | ||
convertedList.add(converter.convert(token)); | ||
} | ||
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return convertedList; | ||
} | ||
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@SuppressWarnings("unchecked") | ||
private <T> Converter<T> getConverter(Class asType) { | ||
|
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asType = (Class) AlternativeTypesUtil.getTypeFromPrimitive(asType).orElse(asType); | ||
|
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Converter converter = converters.get(asType); | ||
|
||
if (converter == null) { | ||
// no registered converter, try to generate implicit converter | ||
converter = ImplicitConverter.getImplicitConverter(asType); | ||
} | ||
|
||
if (converter == null) { | ||
throw new IllegalArgumentException("No Converter registered for class " + asType); | ||
} | ||
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return converter; | ||
} | ||
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@Override | ||
public Iterable<String> getPropertyNames() { | ||
return this.configSources.stream().flatMap(e -> e.getPropertyNames().stream()).collect(Collectors.toSet()); | ||
} | ||
|
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@Override | ||
public Iterable<ConfigSource> getConfigSources() { | ||
return this.configSources; | ||
} | ||
} |
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