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Save network to a binary buffer (#672)
Save network to a binary buffer Signed-off-by: Geoffroy Jamgotchian <[email protected]>
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85 changes: 85 additions & 0 deletions
85
java/src/main/java/com/powsybl/python/network/ZipMemDataSource.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,85 @@ | ||
| /** | ||
| * Copyright (c) 2023, RTE (http://www.rte-france.com) | ||
| * This Source Code Form is subject to the terms of the Mozilla Public | ||
| * License, v. 2.0. If a copy of the MPL was not distributed with this | ||
| * file, You can obtain one at http://mozilla.org/MPL/2.0/. | ||
| * SPDX-License-Identifier: MPL-2.0 | ||
| */ | ||
| package com.powsybl.python.network; | ||
|
|
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| import com.powsybl.commons.datasource.DataSource; | ||
| import com.powsybl.commons.datasource.DataSourceUtil; | ||
| import com.powsybl.commons.io.ForwardingOutputStream; | ||
|
|
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| import java.io.IOException; | ||
| import java.io.InputStream; | ||
| import java.io.OutputStream; | ||
| import java.util.Objects; | ||
| import java.util.Set; | ||
| import java.util.zip.ZipEntry; | ||
| import java.util.zip.ZipOutputStream; | ||
|
|
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| /** | ||
| * @author Geoffroy Jamgotchian {@literal <geoffroy.jamgotchian at rte-france.com>} | ||
| */ | ||
| public class ZipMemDataSource implements DataSource { | ||
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| private final String baseName; | ||
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| private final ZipOutputStream zos; | ||
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| public ZipMemDataSource(String baseName, ZipOutputStream zos) { | ||
| this.baseName = Objects.requireNonNull(baseName); | ||
| this.zos = Objects.requireNonNull(zos); | ||
| } | ||
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| @Override | ||
| public OutputStream newOutputStream(String fileName, boolean append) throws IOException { | ||
| Objects.requireNonNull(fileName); | ||
| if (append) { | ||
| throw new UnsupportedOperationException("append not supported in zip file data source"); | ||
| } | ||
| zos.putNextEntry(new ZipEntry(fileName)); | ||
| return new ForwardingOutputStream<OutputStream>(zos) { | ||
| @Override | ||
| public void close() throws IOException { | ||
| zos.closeEntry(); | ||
| } | ||
| }; | ||
| } | ||
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| @Override | ||
| public OutputStream newOutputStream(String suffix, String ext, boolean append) throws IOException { | ||
| return newOutputStream(DataSourceUtil.getFileName(baseName, suffix, ext), append); | ||
| } | ||
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| @Override | ||
| public String getBaseName() { | ||
| return baseName; | ||
| } | ||
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| @Override | ||
| public boolean exists(String suffix, String ext) { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
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| @Override | ||
| public boolean exists(String fileName) { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
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| @Override | ||
| public InputStream newInputStream(String suffix, String ext) { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
|
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| @Override | ||
| public InputStream newInputStream(String fileName) { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
|
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| @Override | ||
| public Set<String> listNames(String regex) { | ||
| throw new UnsupportedOperationException(); | ||
| } | ||
| } |
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