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Diffstat (limited to 'src/main/java/sevenUnitsGUI/UnitConversionRecord.java')
| -rw-r--r-- | src/main/java/sevenUnitsGUI/UnitConversionRecord.java | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/src/main/java/sevenUnitsGUI/UnitConversionRecord.java b/src/main/java/sevenUnitsGUI/UnitConversionRecord.java new file mode 100644 index 0000000..f951f44 --- /dev/null +++ b/src/main/java/sevenUnitsGUI/UnitConversionRecord.java @@ -0,0 +1,199 @@ +/** + * Copyright (C) 2022 Adrien Hopkins + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <https://www.gnu.org/licenses/>. + */ +package sevenUnitsGUI; + +import java.math.RoundingMode; + +import sevenUnits.unit.LinearUnitValue; +import sevenUnits.unit.UnitValue; + +/** + * A record of a conversion between units or expressions + * + * @since 2022-04-09 + */ +public final class UnitConversionRecord { + /** + * Gets a {@code UnitConversionRecord} from two linear unit values + * + * @param input input unit & value + * @param output output unit & value + * @return unit conversion record + * @since 2022-04-09 + */ + public static UnitConversionRecord fromLinearValues(LinearUnitValue input, + LinearUnitValue output) { + return UnitConversionRecord.valueOf(input.getUnit().getName(), + output.getUnit().getName(), + input.getValue().toString(false, RoundingMode.HALF_EVEN), + output.getValue().toString(false, RoundingMode.HALF_EVEN)); + } + + /** + * Gets a {@code UnitConversionRecord} from two unit values + * + * @param input input unit & value + * @param output output unit & value + * @return unit conversion record + * @since 2022-04-09 + */ + public static UnitConversionRecord fromValues(UnitValue input, + UnitValue output) { + return UnitConversionRecord.valueOf(input.getUnit().getName(), + output.getUnit().getName(), String.valueOf(input.getValue()), + String.valueOf(output.getValue())); + } + + /** + * Gets a {@code UnitConversionRecord} + * + * @param fromName name of unit or expression that was converted + * from + * @param toName name of unit or expression that was converted to + * @param inputValueString string representing input value + * @param outputValueString string representing output value + * @return unit conversion record + * @since 2022-04-09 + */ + public static UnitConversionRecord valueOf(String fromName, String toName, + String inputValueString, String outputValueString) { + return new UnitConversionRecord(fromName, toName, inputValueString, + outputValueString); + } + + /** + * The name of the unit or expression that was converted from + */ + private final String fromName; + /** + * The name of the unit or expression that was converted to + */ + private final String toName; + + /** + * A string representing the input value. It doesn't need to be the same as + * the input value's string representation; it could be rounded, for example. + */ + private final String inputValueString; + /** + * A string representing the input value. It doesn't need to be the same as + * the input value's string representation; it could be rounded, for example. + */ + private final String outputValueString; + + /** + * @param fromName name of unit or expression that was converted + * from + * @param toName name of unit or expression that was converted to + * @param inputValueString string representing input value + * @param outputValueString string representing output value + * @since 2022-04-09 + */ + private UnitConversionRecord(String fromName, String toName, + String inputValueString, String outputValueString) { + this.fromName = fromName; + this.toName = toName; + this.inputValueString = inputValueString; + this.outputValueString = outputValueString; + } + + @Override + public boolean equals(Object obj) { + if (this == obj) + return true; + if (!(obj instanceof UnitConversionRecord)) + return false; + final UnitConversionRecord other = (UnitConversionRecord) obj; + if (this.fromName == null) { + if (other.fromName != null) + return false; + } else if (!this.fromName.equals(other.fromName)) + return false; + if (this.inputValueString == null) { + if (other.inputValueString != null) + return false; + } else if (!this.inputValueString.equals(other.inputValueString)) + return false; + if (this.outputValueString == null) { + if (other.outputValueString != null) + return false; + } else if (!this.outputValueString.equals(other.outputValueString)) + return false; + if (this.toName == null) { + if (other.toName != null) + return false; + } else if (!this.toName.equals(other.toName)) + return false; + return true; + } + + /** + * @return name of unit or expression that was converted from + * @since 2022-04-09 + */ + public String fromName() { + return this.fromName; + } + + @Override + public int hashCode() { + final int prime = 31; + int result = 1; + result = prime * result + + (this.fromName == null ? 0 : this.fromName.hashCode()); + result = prime * result + (this.inputValueString == null ? 0 + : this.inputValueString.hashCode()); + result = prime * result + (this.outputValueString == null ? 0 + : this.outputValueString.hashCode()); + result = prime * result + + (this.toName == null ? 0 : this.toName.hashCode()); + return result; + } + + /** + * @return string representing input value + * @since 2022-04-09 + */ + public String inputValueString() { + return this.inputValueString; + } + + /** + * @return string representing output value + * @since 2022-04-09 + */ + public String outputValueString() { + return this.outputValueString; + } + + /** + * @return name of unit or expression that was converted to + * @since 2022-04-09 + */ + public String toName() { + return this.toName; + } + + @Override + public String toString() { + final String inputString = this.inputValueString.isBlank() ? this.fromName + : this.inputValueString + " " + this.fromName; + final String outputString = this.outputValueString.isBlank() ? this.toName + : this.outputValueString + " " + this.toName; + return inputString + " = " + outputString; + } +} |