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GaxPropertiesSubstitutions.java
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GaxPropertiesSubstitutions.java
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/*
* Copyright 2022 Google LLC
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google LLC nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.google.api.gax.nativeimage.substitutions;
import com.oracle.svm.core.annotate.Alias;
import com.oracle.svm.core.annotate.RecomputeFieldValue;
import com.oracle.svm.core.annotate.RecomputeFieldValue.Kind;
import com.oracle.svm.core.annotate.TargetClass;
import java.util.function.BooleanSupplier;
/**
* This file contains the GaxProperties substitution to correctly set the Java language string in
* API call headers for Native Image users.
*/
@TargetClass(
className = "com.google.api.gax.core.GaxProperties",
onlyWith = GaxPropertiesSubstitutions.OnlyIfInClassPath.class)
final class GaxPropertiesSubstitutions {
@Alias
@RecomputeFieldValue(kind = Kind.FromAlias)
private static String JAVA_VERSION = System.getProperty("java.version") + "-graalvm";
private GaxPropertiesSubstitutions() {}
static class OnlyIfInClassPath implements BooleanSupplier {
@Override
public boolean getAsBoolean() {
try {
// Note: Set initialize = false to avoid initializing the class when looking it up.
Class.forName(
"com.google.api.gax.core.GaxProperties",
false,
Thread.currentThread().getContextClassLoader());
return true;
} catch (ClassNotFoundException e) {
return false;
}
}
}
}