com.opengamma.sdk.margin.PortfolioDataFile Maven / Gradle / Ivy
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/*
* Copyright (C) 2016 - present by OpenGamma Inc. and the OpenGamma group of companies
*
* Please see distribution for license.
*/
package com.opengamma.sdk.margin;
import static java.util.stream.Collectors.joining;
import static java.util.stream.Collectors.toList;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.UncheckedIOException;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.Base64;
import java.util.List;
import java.util.Map;
import java.util.NoSuchElementException;
import java.util.zip.GZIPOutputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
import org.joda.beans.Bean;
import org.joda.beans.BeanBuilder;
import org.joda.beans.ImmutableBean;
import org.joda.beans.JodaBeanUtils;
import org.joda.beans.MetaBean;
import org.joda.beans.MetaProperty;
import org.joda.beans.gen.BeanDefinition;
import org.joda.beans.gen.PropertyDefinition;
import org.joda.beans.impl.direct.DirectMetaBean;
import org.joda.beans.impl.direct.DirectMetaProperty;
import org.joda.beans.impl.direct.DirectMetaPropertyMap;
import org.joda.beans.impl.direct.DirectPrivateBeanBuilder;
/**
* Portfolio data to pass to the service.
*/
@BeanDefinition(builderScope = "private", metaScope = "private")
public final class PortfolioDataFile implements ImmutableBean {
/**
* The portfolio name.
*/
@PropertyDefinition(validate = "notNull")
private final String name;
/**
* The portfolio data.
*/
@PropertyDefinition(validate = "notNull")
private final String data;
//-------------------------------------------------------------------------
/**
* Obtains an instance from the String representation of the data.
*
* The data is compressed using GZIP, and sent to the server using Base-64.
*
* @param name the name, not empty
* @param data the data, not empty
* @return the instance
* @throws UncheckedIOException if an IO error occurs
*/
public static PortfolioDataFile of(String name, String data) {
String base64Data = gzipBase64(data);
return new PortfolioDataFile(name + ".gz.base64", base64Data);
}
/**
* Obtains an instance from a file.
*
* The file is compressed using GZIP, and sent to the server using Base-64.
*
* @param path the file
* @return the instance
* @throws UncheckedIOException if an IO error occurs
*/
public static PortfolioDataFile of(Path path) {
String filename = path.toAbsolutePath().toString();
if (Files.notExists(path)) {
throw new IllegalArgumentException("Could not find portfolio file: " + filename);
}
String base64Data = gzipBase64(path);
return new PortfolioDataFile(filename + ".gz.base64", base64Data);
}
/**
* Obtains an instance by combining a list of files.
*
* The files are combined using ZIP, and sent to the server using Base-64.
*
* @param paths the files, at least one
* @return the instance
* @throws IllegalArgumentException if no files were passed in
* @throws UncheckedIOException if an IO error occurs
*/
public static PortfolioDataFile ofCombined(List paths) {
List missingFiles = paths.stream().filter(Files::notExists).collect(toList());
if (!missingFiles.isEmpty()) {
String missingFilesAsString = missingFiles.stream().map(Path::toString).collect(joining(","));
throw new IllegalArgumentException("Could not find one or more of the input files in the list." + missingFilesAsString);
}
String base64Data = zipBase64(paths);
return new PortfolioDataFile("JavaSDK.zip.base64", base64Data);
}
/**
* Convert input to bytes using UTF-8, gzip it, then base-64 it.
*
* @param data the input data, as a String
* @return the compressed output, as a String
*/
private static String gzipBase64(String data) {
try {
try (ByteArrayOutputStream baos = new ByteArrayOutputStream(data.length() / 4 + 1)) {
try (OutputStream baseos = Base64.getEncoder().wrap(baos)) {
try (GZIPOutputStream zos = new GZIPOutputStream(baseos)) {
try (OutputStreamWriter writer = new OutputStreamWriter(zos, StandardCharsets.UTF_8)) {
writer.write(data);
}
}
}
return baos.toString("ISO-8859-1"); // base-64 bytes are ASCII, so this is optimal
}
} catch (IOException ex) {
throw new UncheckedIOException("Failed to gzip base-64 content", ex);
}
}
/**
* Gzips the input then base-64 it.
*
* @param path the input data file, as an instance of {@link Path}
* @return the compressed output, as a String
*/
private static String gzipBase64(Path path) {
try {
long size = Files.size(path) / 4 + 1;
int initialSize = size > Integer.MAX_VALUE ? Integer.MAX_VALUE : (int) size;
try (ByteArrayOutputStream baos = new ByteArrayOutputStream(initialSize)) {
try (OutputStream baseos = Base64.getEncoder().wrap(baos)) {
try (GZIPOutputStream zos = new GZIPOutputStream(baseos)) {
Files.copy(path, zos);
}
}
return baos.toString("ISO-8859-1"); // base-64 bytes are ASCII, so this is optimal
}
} catch (IOException ex) {
throw new UncheckedIOException("Failed to gzip base-64 content", ex);
}
}
/**
* Combines multiple files into a ZIP archive, then base-64 the ZIP archive.
*
* @param paths a list of one or more input files, that are to be compressed together
* @return the compressed output, as a String
*/
private static String zipBase64(List paths) {
if (paths.isEmpty()) {
throw new IllegalArgumentException("PortfolioDataFile requires at least one file");
}
try {
try (ByteArrayOutputStream baos = new ByteArrayOutputStream(1024 * 8)) {
try (OutputStream baseos = Base64.getEncoder().wrap(baos)) {
try (ZipOutputStream zos = new ZipOutputStream(baseos)) {
for (Path path : paths) {
ZipEntry entry = new ZipEntry(path.getFileName().toString());
zos.putNextEntry(entry);
Files.copy(path, zos);
zos.closeEntry();
}
}
}
return baos.toString("ISO-8859-1"); // base-64 bytes are ASCII, so this is optimal
}
} catch (IOException ex) {
throw new UncheckedIOException("Failed to zip base-64 content", ex);
}
}
//------------------------- AUTOGENERATED START -------------------------
/**
* The meta-bean for {@code PortfolioDataFile}.
* @return the meta-bean, not null
*/
public static MetaBean meta() {
return PortfolioDataFile.Meta.INSTANCE;
}
static {
MetaBean.register(PortfolioDataFile.Meta.INSTANCE);
}
private PortfolioDataFile(
String name,
String data) {
JodaBeanUtils.notNull(name, "name");
JodaBeanUtils.notNull(data, "data");
this.name = name;
this.data = data;
}
@Override
public MetaBean metaBean() {
return PortfolioDataFile.Meta.INSTANCE;
}
//-----------------------------------------------------------------------
/**
* Gets the portfolio name.
* @return the value of the property, not null
*/
public String getName() {
return name;
}
//-----------------------------------------------------------------------
/**
* Gets the portfolio data.
* @return the value of the property, not null
*/
public String getData() {
return data;
}
//-----------------------------------------------------------------------
@Override
public boolean equals(Object obj) {
if (obj == this) {
return true;
}
if (obj != null && obj.getClass() == this.getClass()) {
PortfolioDataFile other = (PortfolioDataFile) obj;
return JodaBeanUtils.equal(name, other.name) &&
JodaBeanUtils.equal(data, other.data);
}
return false;
}
@Override
public int hashCode() {
int hash = getClass().hashCode();
hash = hash * 31 + JodaBeanUtils.hashCode(name);
hash = hash * 31 + JodaBeanUtils.hashCode(data);
return hash;
}
@Override
public String toString() {
StringBuilder buf = new StringBuilder(96);
buf.append("PortfolioDataFile{");
buf.append("name").append('=').append(name).append(',').append(' ');
buf.append("data").append('=').append(JodaBeanUtils.toString(data));
buf.append('}');
return buf.toString();
}
//-----------------------------------------------------------------------
/**
* The meta-bean for {@code PortfolioDataFile}.
*/
private static final class Meta extends DirectMetaBean {
/**
* The singleton instance of the meta-bean.
*/
static final Meta INSTANCE = new Meta();
/**
* The meta-property for the {@code name} property.
*/
private final MetaProperty name = DirectMetaProperty.ofImmutable(
this, "name", PortfolioDataFile.class, String.class);
/**
* The meta-property for the {@code data} property.
*/
private final MetaProperty data = DirectMetaProperty.ofImmutable(
this, "data", PortfolioDataFile.class, String.class);
/**
* The meta-properties.
*/
private final Map> metaPropertyMap$ = new DirectMetaPropertyMap(
this, null,
"name",
"data");
/**
* Restricted constructor.
*/
private Meta() {
}
@Override
protected MetaProperty metaPropertyGet(String propertyName) {
switch (propertyName.hashCode()) {
case 3373707: // name
return name;
case 3076010: // data
return data;
}
return super.metaPropertyGet(propertyName);
}
@Override
public BeanBuilder builder() {
return new PortfolioDataFile.Builder();
}
@Override
public Class beanType() {
return PortfolioDataFile.class;
}
@Override
public Map> metaPropertyMap() {
return metaPropertyMap$;
}
//-----------------------------------------------------------------------
@Override
protected Object propertyGet(Bean bean, String propertyName, boolean quiet) {
switch (propertyName.hashCode()) {
case 3373707: // name
return ((PortfolioDataFile) bean).getName();
case 3076010: // data
return ((PortfolioDataFile) bean).getData();
}
return super.propertyGet(bean, propertyName, quiet);
}
@Override
protected void propertySet(Bean bean, String propertyName, Object newValue, boolean quiet) {
metaProperty(propertyName);
if (quiet) {
return;
}
throw new UnsupportedOperationException("Property cannot be written: " + propertyName);
}
}
//-----------------------------------------------------------------------
/**
* The bean-builder for {@code PortfolioDataFile}.
*/
private static final class Builder extends DirectPrivateBeanBuilder {
private String name;
private String data;
/**
* Restricted constructor.
*/
private Builder() {
}
//-----------------------------------------------------------------------
@Override
public Object get(String propertyName) {
switch (propertyName.hashCode()) {
case 3373707: // name
return name;
case 3076010: // data
return data;
default:
throw new NoSuchElementException("Unknown property: " + propertyName);
}
}
@Override
public Builder set(String propertyName, Object newValue) {
switch (propertyName.hashCode()) {
case 3373707: // name
this.name = (String) newValue;
break;
case 3076010: // data
this.data = (String) newValue;
break;
default:
throw new NoSuchElementException("Unknown property: " + propertyName);
}
return this;
}
@Override
public PortfolioDataFile build() {
return new PortfolioDataFile(
name,
data);
}
//-----------------------------------------------------------------------
@Override
public String toString() {
StringBuilder buf = new StringBuilder(96);
buf.append("PortfolioDataFile.Builder{");
buf.append("name").append('=').append(JodaBeanUtils.toString(name)).append(',').append(' ');
buf.append("data").append('=').append(JodaBeanUtils.toString(data));
buf.append('}');
return buf.toString();
}
}
//-------------------------- AUTOGENERATED END --------------------------
}