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package ch.fhnw.thga.gradleplugins;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.Arrays;
import java.util.stream.Collectors;
import java.util.stream.Stream;
public class FregeDTO {
public final String version;
public final String release;
public final String compilerDownloadDir;
public final String mainSourceDir;
public final String outputDir;
public final String mainModule;
public final String compilerFlags;
public final String replSource;
public FregeDTO(
String version,
String release,
String compilerDownloadDir,
String mainSourceDir,
String outputDir,
String mainModule,
String compilerFlags,
String replSource) {
this.version = version;
this.release = release;
this.compilerDownloadDir = compilerDownloadDir;
this.mainSourceDir = mainSourceDir;
this.outputDir = outputDir;
this.mainModule = mainModule;
this.compilerFlags = compilerFlags;
this.replSource = replSource;
}
public String getVersion() {
return version;
}
public String getRelease() {
return release;
}
public String getCompilerDownloadDir() {
return compilerDownloadDir;
}
public String getMainSourceDir() {
return mainSourceDir;
}
public String getOutputDir() {
return outputDir;
}
public String getMainModule() {
return mainModule;
}
public String getCompilerFlags() {
return compilerFlags;
}
public String getReplSource() {
return replSource;
}
private String getFieldValue(Field field) {
try {
return field.get(this).toString();
} catch (IllegalAccessException | IllegalArgumentException e) {
throw new RuntimeException(e.getMessage(), e.getCause());
}
}
private Field getField(String fieldName) {
try {
return FregeDTO.class.getField(fieldName);
} catch (NoSuchFieldException e) {
throw new RuntimeException(
String.format(
"Field %s not found in class %s",
e.getMessage(), FregeDTO.class.getName()),
e.getCause());
}
}
private boolean isEmpty(Field field) {
return getFieldValue(field).isEmpty();
}
private String toKeyValuePairs(Field field) {
return String.format("%s = %s", field.getName(), getFieldValue(field));
}
private boolean isGetterProperty(Method method) {
return method.getName().startsWith("get") &&
method.getReturnType().getName().contains("Property");
}
private String stripGetPrefixAndDecapitalize(String s) {
return Character.toLowerCase(s.charAt(3)) + s.substring(4);
}
public String toBuildFile() {
Stream<Field> fields =
Arrays.stream(FregeExtension.class.getMethods())
.filter(m -> isGetterProperty(m))
.map(m -> stripGetPrefixAndDecapitalize(m.getName()))
.map(name -> getField(name));
return fields
.filter(f -> !isEmpty(f))
.map(f -> toKeyValuePairs(f))
.collect(Collectors.joining("\n "));
}
}
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