File MainRenderer.java
has 474 lines of code (exceeds 250 allowed). Consider refactoring. Open
package puscas.mobilertapp;
import android.app.ActivityManager;
import android.graphics.Bitmap;
import android.graphics.Color;
MainRenderer
has 40 methods (exceeds 20 allowed). Consider refactoring. Open
public final class MainRenderer implements GLSurfaceView.Renderer {
/**
* Logger for this class.
*/
Method onDrawFrame
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@Override
public void onDrawFrame(@NonNull final GL10 gl) {
logger.info("onDrawFrame");
// Reset OpenGL frame buffer before drawing the new frame.
Use the built-in formatting to construct this argument. Open
logger.info("resetStats numThreads: " + numThreads + ", numPrimitives: " + numPrimitives + ", numLights: " + numLights);
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Passing message arguments that require further evaluation into a Guava com.google.common.base.Preconditions
check can result in a
performance penalty. That's because whether or not they're needed, each argument must be resolved before the method is actually called.
Similarly, passing concatenated strings into a logging method can also incur a needless performance hit because the concatenation will be performed every time the method is called, whether or not the log level is low enough to show the message.
Instead, you should structure your code to pass static or pre-computed values into Preconditions
conditions check and logging
calls.
Specifically, the built-in string formatting should be used instead of string concatenation, and if the message is the result of a method call,
then Preconditions
should be skipped altogether, and the relevant exception should be conditionally thrown instead.
Noncompliant Code Example
logger.log(Level.DEBUG, "Something went wrong: " + message); // Noncompliant; string concatenation performed even when log level too high to show DEBUG messages logger.fine("An exception occurred with message: " + message); // Noncompliant LOG.error("Unable to open file " + csvPath, e); // Noncompliant Preconditions.checkState(a > 0, "Arg must be positive, but got " + a); // Noncompliant. String concatenation performed even when a > 0 Preconditions.checkState(condition, formatMessage()); // Noncompliant. formatMessage() invoked regardless of condition Preconditions.checkState(condition, "message: %s", formatMessage()); // Noncompliant
Compliant Solution
logger.log(Level.SEVERE, "Something went wrong: {0} ", message); // String formatting only applied if needed logger.fine("An exception occurred with message: {}", message); // SLF4J, Log4j logger.log(Level.SEVERE, () -> "Something went wrong: " + message); // since Java 8, we can use Supplier , which will be evaluated lazily LOG.error("Unable to open file {0}", csvPath, e); if (LOG.isDebugEnabled() { LOG.debug("Unable to open file " + csvPath, e); // this is compliant, because it will not evaluate if log level is above debug. } Preconditions.checkState(arg > 0, "Arg must be positive, but got %d", a); // String formatting only applied if needed if (!condition) { throw new IllegalStateException(formatMessage()); // formatMessage() only invoked conditionally } if (!condition) { throw new IllegalStateException("message: " + formatMessage()); }
Exceptions
catch
blocks are ignored, because the performance penalty is unimportant on exceptional paths (catch block should not be a part of
standard program flow). Getters are ignored as well as methods called on annotations which can be considered as getters. This rule accounts for
explicit test-level testing with SLF4J methods isXXXEnabled
and ignores the bodies of such if
statements.
Line is longer than 100 characters (found 131). Open
setBitmap(ConfigResolution.Builder.Companion.create().build(), ConfigResolution.Builder.Companion.create().build(), false);
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return renderSceneToBitmap(this.arrayVertices, this.arrayColors, this.arrayCamera, this.numPrimitives);
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final ConfigGlAttribute.Builder builderVerticesAttribute = ConfigGlAttribute.Builder.Companion.create();
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Wrong lexicographical order for 'java.nio.IntBuffer' import. Should be before 'org.jetbrains.annotations.Contract'. Open
import java.nio.IntBuffer;
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import java8.util.Optional;
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import javax.microedition.khronos.egl.EGLConfig;
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* get the {@link State} of MobileRT.
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Checks the indentation of the continuation lines in block tags.That is whether thecontinued description of at clauses should be indented or not. If the text is not properlyindented it throws a violation. A continuation line is when the description starts/spanspast the line with the tag. Default indentation required is at least 4, but this can bechanged with the help of properties below.
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return (this.configResolutionView.getHeight() - line - 1) * this.configResolutionView.getWidth() + column;
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0, 0, configResolutionView.getWidth(), configResolutionView.getHeight(), GLES20.GL_RGBA, GLES20.GL_UNSIGNED_BYTE, intBuffer
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Wrong lexicographical order for 'javax.microedition.khronos.egl.EGLConfig' import. Should be before 'org.jetbrains.annotations.Contract'. Open
import javax.microedition.khronos.egl.EGLConfig;
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Wrong lexicographical order for 'kotlinx.coroutines.DelicateCoroutinesApi' import. Should be before 'org.jetbrains.annotations.Contract'. Open
import kotlinx.coroutines.DelicateCoroutinesApi;
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logger.info("resetStats numThreads: " + numThreads + ", numPrimitives: " + numPrimitives + ", numLights: " + numLights);
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final ConfigGlAttribute.Builder builderTextureAttribute = ConfigGlAttribute.Builder.Companion.create();
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import java.lang.annotation.Native;
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private final ConfigRenderTask.Builder configRenderTask = ConfigRenderTask.Builder.Companion.create();
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final ConfigGlAttribute.Builder builderColorsAttribute = ConfigGlAttribute.Builder.Companion.create();
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final ConfigGlAttribute.Builder builderTextureAttribute = ConfigGlAttribute.Builder.Companion.create();
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Wrong lexicographical order for 'java.util.logging.Logger' import. Should be before 'org.jetbrains.annotations.Contract'. Open
import java.util.logging.Logger;
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* @implNote This method waits for the {@link #firstFrame} to be {@code false} so it can properly
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MainActivity.showUiMessage(ConstantsToast.COULD_NOT_RENDER_THE_SCENE + ex.getMessage());
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import com.google.common.base.Preconditions;
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Wrong lexicographical order for 'java.nio.ByteBuffer' import. Should be before 'org.jetbrains.annotations.Contract'. Open
import java.nio.ByteBuffer;
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Wrong lexicographical order for 'java.lang.annotation.Native' import. Should be before 'org.jetbrains.annotations.Contract'. Open
import java.lang.annotation.Native;
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Wrong lexicographical order for 'javax.microedition.khronos.opengles.GL10' import. Should be before 'org.jetbrains.annotations.Contract'. Open
import javax.microedition.khronos.opengles.GL10;
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This documentation is written and maintained by the Checkstyle community and is covered under the same license as the Checkstyle project.
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final ConfigGlAttribute.Builder builderVerticesAttribute = ConfigGlAttribute.Builder.Companion.create();
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Wrong lexicographical order for 'java.nio.FloatBuffer' import. Should be before 'org.jetbrains.annotations.Contract'. Open
import java.nio.FloatBuffer;
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final String message = "MEMORY AVAILABLE: " + availMem + "MB (" + totalMem + "MB) [Needed " + memoryNeeded + "MB]";
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import org.jetbrains.annotations.Contract;
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This documentation is written and maintained by the Checkstyle community and is covered under the same license as the Checkstyle project.
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private ConfigResolution configResolutionView = ConfigResolution.Builder.Companion.create().build();
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final ConfigGlAttribute.Builder builderVerticesAttribute = ConfigGlAttribute.Builder.Companion.create();
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this.bitmap = Bitmap.createBitmap(configResolution.getWidth(), configResolution.getHeight(), Bitmap.Config.ARGB_8888);
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arrayBytesNewBitmap, configResolutionView.getWidth(), configResolutionView.getHeight(), Bitmap.Config.ARGB_8888
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Wrong lexicographical order for 'java.util.Map' import. Should be before 'org.jetbrains.annotations.Contract'. Open
import java.util.Map;
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import androidx.annotation.NonNull;
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import java.util.concurrent.TimeUnit;
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import java8.util.Optional;
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