org.apache.juneau.csv.CsvSerializerSession Maven / Gradle / Ivy
// ***************************************************************************************************************************
// * 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.juneau.csv;
import static org.apache.juneau.internal.CollectionUtils.*;
import java.io.*;
import java.lang.reflect.*;
import java.nio.charset.*;
import java.util.*;
import java.util.function.*;
import org.apache.juneau.*;
import org.apache.juneau.httppart.*;
import org.apache.juneau.internal.*;
import org.apache.juneau.serializer.*;
import org.apache.juneau.svl.*;
/**
* Session object that lives for the duration of a single use of {@link CsvSerializer}.
*
* Notes:
* - This class is not thread safe and is typically discarded after one use.
*
*
* See Also:
*
*/
public final class CsvSerializerSession extends WriterSerializerSession {
//-----------------------------------------------------------------------------------------------------------------
// Static
//-----------------------------------------------------------------------------------------------------------------
/**
* Creates a new builder for this object.
*
* @param ctx The context creating this session.
* @return A new builder.
*/
public static Builder create(CsvSerializer ctx) {
return new Builder(ctx);
}
//-----------------------------------------------------------------------------------------------------------------
// Builder
//-----------------------------------------------------------------------------------------------------------------
/**
* Builder class.
*/
@FluentSetters
public static class Builder extends WriterSerializerSession.Builder {
CsvSerializer ctx;
/**
* Constructor
*
* @param ctx The context creating this session.
*/
protected Builder(CsvSerializer ctx) {
super(ctx);
this.ctx = ctx;
}
@Override
public CsvSerializerSession build() {
return new CsvSerializerSession(this);
}
//
@Override /* GENERATED - org.apache.juneau.ContextSession.Builder */
public Builder apply(Class type, Consumer apply) {
super.apply(type, apply);
return this;
}
@Override /* GENERATED - org.apache.juneau.ContextSession.Builder */
public Builder debug(Boolean value) {
super.debug(value);
return this;
}
@Override /* GENERATED - org.apache.juneau.ContextSession.Builder */
public Builder properties(Map value) {
super.properties(value);
return this;
}
@Override /* GENERATED - org.apache.juneau.ContextSession.Builder */
public Builder property(String key, Object value) {
super.property(key, value);
return this;
}
@Override /* GENERATED - org.apache.juneau.ContextSession.Builder */
public Builder unmodifiable() {
super.unmodifiable();
return this;
}
@Override /* GENERATED - org.apache.juneau.BeanSession.Builder */
public Builder locale(Locale value) {
super.locale(value);
return this;
}
@Override /* GENERATED - org.apache.juneau.BeanSession.Builder */
public Builder localeDefault(Locale value) {
super.localeDefault(value);
return this;
}
@Override /* GENERATED - org.apache.juneau.BeanSession.Builder */
public Builder mediaType(MediaType value) {
super.mediaType(value);
return this;
}
@Override /* GENERATED - org.apache.juneau.BeanSession.Builder */
public Builder mediaTypeDefault(MediaType value) {
super.mediaTypeDefault(value);
return this;
}
@Override /* GENERATED - org.apache.juneau.BeanSession.Builder */
public Builder timeZone(TimeZone value) {
super.timeZone(value);
return this;
}
@Override /* GENERATED - org.apache.juneau.BeanSession.Builder */
public Builder timeZoneDefault(TimeZone value) {
super.timeZoneDefault(value);
return this;
}
@Override /* GENERATED - org.apache.juneau.serializer.SerializerSession.Builder */
public Builder javaMethod(Method value) {
super.javaMethod(value);
return this;
}
@Override /* GENERATED - org.apache.juneau.serializer.SerializerSession.Builder */
public Builder resolver(VarResolverSession value) {
super.resolver(value);
return this;
}
@Override /* GENERATED - org.apache.juneau.serializer.SerializerSession.Builder */
public Builder schema(HttpPartSchema value) {
super.schema(value);
return this;
}
@Override /* GENERATED - org.apache.juneau.serializer.SerializerSession.Builder */
public Builder schemaDefault(HttpPartSchema value) {
super.schemaDefault(value);
return this;
}
@Override /* GENERATED - org.apache.juneau.serializer.SerializerSession.Builder */
public Builder uriContext(UriContext value) {
super.uriContext(value);
return this;
}
@Override /* GENERATED - org.apache.juneau.serializer.WriterSerializerSession.Builder */
public Builder fileCharset(Charset value) {
super.fileCharset(value);
return this;
}
@Override /* GENERATED - org.apache.juneau.serializer.WriterSerializerSession.Builder */
public Builder streamCharset(Charset value) {
super.streamCharset(value);
return this;
}
@Override /* GENERATED - org.apache.juneau.serializer.WriterSerializerSession.Builder */
public Builder useWhitespace(Boolean value) {
super.useWhitespace(value);
return this;
}
//
}
//-----------------------------------------------------------------------------------------------------------------
// Instance
//-----------------------------------------------------------------------------------------------------------------
/**
* Constructor.
*
* @param builder The builder for this object.
*/
protected CsvSerializerSession(Builder builder) {
super(builder);
}
@SuppressWarnings("rawtypes")
@Override /* SerializerSession */
protected void doSerialize(SerializerPipe pipe, Object o) throws IOException, SerializeException {
try (CsvWriter w = getCsvWriter(pipe)) {
ClassMeta cm = getClassMetaForObject(o);
Collection l = null;
if (cm.isArray()) {
l = alist((Object[])o);
} else if (cm.isCollection()) {
l = (Collection)o;
} else {
l = Collections.singleton(o);
}
// TODO - Doesn't support DynaBeans.
if (l.size() > 0) {
ClassMeta entryType = getClassMetaForObject(l.iterator().next());
if (entryType.isBean()) {
BeanMeta bm = entryType.getBeanMeta();
Flag addComma = Flag.create();
bm.forEachProperty(BeanPropertyMeta::canRead, x -> {
addComma.ifSet(() -> w.w(',')).set();
w.writeEntry(x.getName());
});
w.append('\n');
l.forEach(x -> {
Flag addComma2 = Flag.create();
BeanMap bean = toBeanMap(x);
bm.forEachProperty(BeanPropertyMeta::canRead, y -> {
addComma2.ifSet(() -> w.w(',')).set();
w.writeEntry(y.get(bean, y.getName()));
});
w.w('\n');
});
} else if (entryType.isMap()) {
Flag addComma = Flag.create();
Map first = (Map)l.iterator().next();
first.keySet().forEach(x -> {
addComma.ifSet(() -> w.w(',')).set();
w.writeEntry(x);
});
w.append('\n');
l.stream().forEach(x -> {
Flag addComma2 = Flag.create();
Map map = (Map)x;
map.values().forEach(y -> {
addComma2.ifSet(() -> w.w(',')).set();
w.writeEntry(y);
});
w.w('\n');
});
} else {
w.writeEntry("value");
w.append('\n');
l.stream().forEach(x -> {
w.writeEntry(x);
w.w('\n');
});
}
}
}
}
CsvWriter getCsvWriter(SerializerPipe out) {
Object output = out.getRawOutput();
if (output instanceof CsvWriter)
return (CsvWriter)output;
CsvWriter w = new CsvWriter(out.getWriter(), isUseWhitespace(), getMaxIndent(), getQuoteChar(), isTrimStrings(), getUriResolver());
out.setWriter(w);
return w;
}
}
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